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Math worksheet for Term 3 Week 10 with five activities including number comparisons, ordering, addition, patterns, and a grid puzzle.

A math worksheet for Term 3 Week 10 featuring five activities: more/less than, ascending order, sums of 20, completing patterns, and a grid puzzle with a cartoon girl.

A math worksheet for Term 3 Week 10 featuring five activities: more/less than, ascending order, sums of 20, completing patterns, and a grid puzzle with a cartoon girl.

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Show Answer Key & Explanations Step-by-step solution for: Grade 2 Mental Maths Term 3 » My Klaskamer deur Kobie Kleynhans
Let’s solve each activity step by step.

---

Activity 1: More / less than

We need to fill in the blanks using “more than” or “less than”.

1) 4 more than 25 → 25 + 4 = 29
2) ___ less than 30 is 25 → 30 - ? = 25 → ? = 5
3) 6 ___ than 30 is 36 → 30 + 6 = 36 → so it’s more
4) 9 more than 37 → 37 + 9 = 46
5) 20 less than 39 → 39 - 20 = 19
6) 8 ___ as 42 is 34 → 42 - 8 = 34 → so it’s less (but note: wording says “as”, probably means “less than”) → less
7) ___ more than 46 is 63 → 63 - 46 = 17
8) 7 more than 76 → 76 + 7 = 83

Answers for Activity 1:
1) 29
2) 5
3) more
4) 46
5) 19
6) less
7) 17
8) 83

---

Activity 2: Ascending order

Ascending means from smallest to largest. We are given three numbers and must write them in order after the “>” sign — but wait, that doesn’t make sense. Actually, looking at the example format:
It says “126, 261, 116 > ___, ___, ___” — this likely means arrange them in ascending order (smallest to biggest), even though the “>” symbol is confusing here. Probably a typo or misformatting — we’ll assume they want ascending order listed left to right.

So:

1) 126, 261, 116 → sorted: 116, 126, 261
2) 85, 18, 58 → 18, 58, 85
3) 113, 111, 110 → 110, 111, 113
4) 114, 116, 141 → 114, 116, 141
5) 34, 43, 343 → 34, 43, 343
6) 173, 137, 133 → 133, 137, 173
7) 89, 86, 98 → 86, 89, 98
8) 141, 14, 144 → 14, 141, 144

Answers for Activity 2:
1) 116, 126, 261
2) 18, 58, 85
3) 110, 111, 113
4) 114, 116, 141
5) 34, 43, 343
6) 133, 137, 173
7) 86, 89, 98
8) 14, 141, 144

---

Activity 3: Sums of 20

Each line adds up to 20. Fill in the missing numbers.

Example: 13 + _ + _ = 20 → 13 + 2 + 5 = 20? Wait, example says “E.g. 13 + 2 + 5 = 20” — yes, 13+2+5=20.

So:

1) 13 + _ + _ = 20 → 20 - 13 = 7 → any two numbers adding to 7 → e.g., 2 + 5 (as per example) → but let’s pick simple ones: 1 + 6, or 3 + 4 — since example used 2+5, maybe follow pattern? But no rule — just need sum to 7. Let’s use 2 + 5 again? Or better, vary slightly. Actually, problem doesn’t specify unique answers — so we can choose.

But to be safe, let’s use small numbers:

1) 13 + 2 + 5 = 20 (same as example)
Wait — example was given separately. The actual questions start at 1). So:

1) 13 + _ + _ = 20 → 20 - 13 = 7 → possible: 1 + 6
2) 9 + _ + _ = 20 → 20 - 9 = 11 → 5 + 6
3) _ + 7 + _ = 20 → total needed: 20 - 7 = 13 → split into two: 6 + 7? But 7 already used? No restriction. Or 5 + 8
Actually, let’s do:

To keep it simple and avoid repeats if possible:

1) 13 + 1 + 6 = 20
2) 9 + 5 + 6 = 20
3) 6 + 7 + 7 = 20 → okay, duplicate allowed? Yes. Or 5 + 8: 5+7+8=20 → better → 5 and 8
4) 13 + _ + _ = 20 → same as #1 → 1 + 6 or 2 + 5 → let’s use 2 + 5
5) _ + 6 + _ = 20 → 20 - 6 = 14 → 7 + 7 or 5 + 9 → use 5 + 9
6) _ + 12 + _ = 20 → 20 - 12 = 8 → 3 + 5
7) _ + _ + 10 = 20 → 20 - 10 = 10 → 4 + 6
8) _ + _ + 7 = 20 → 20 - 7 = 13 → 6 + 7

Let me verify each:

1) 13+1+6=20
2) 9+5+6=20
3) 5+7+8=20
4) 13+2+5=20
5) 5+6+9=20
6) 3+12+5=20
7) 4+6+10=20
8) 6+7+7=20

Alternatively, to make it neater, perhaps use consistent patterns? But not required. These work.

Answers for Activity 3:
1) 1, 6
2) 5, 6
3) 5, 8
4) 2, 5
5) 5, 9
6) 3, 5
7) 4, 6
8) 6, 7

*(Note: Other combinations are also correct as long as they add to 20.)*

---

Activity 4: Complete the patterns

Look for the pattern in each row.

1) 10 + 7 = 17; 20 + 7 = 27; 30 + 7 = 37 → increasing first number by 10 → next would be 40+7=47, etc. But only asked for these three → last one is 37

Wait, the way it's written:
“1) 10 + 7 - _____ ; 20 + 7 - _____ ; 30 + 7 - _____”

The dash might mean “equals”? In some notations, “-” is used for equals? Unlikely. Looking back at original image description — actually in the user’s text it says:

“1) 10 + 7 - -----; 20 + 7 - -----; 30 + 7 - -----”

This is probably a formatting issue — likely meant to be “=” instead of “-”. Because otherwise subtraction doesn’t fit the pattern.

Looking at context: Activity 4 is “Complete the patterns” — and other items like “5 x 3 - -----” suggest it’s meant to be equals.

Also, in Activity 5, there’s a grid with “-” meaning minus, so here “-” might be a separator? But that doesn’t make sense.

Wait — re-examining the original problem statement from user:

In Activity 4:
“1) 10 + 7 - -----; 20 + 7 - -----; 30 + 7 - -----”

I think the “-” here is being used as an arrow or equals sign due to font limitations. Given that all other operations are addition/multiplication/subtraction resulting in a number, it’s safe to assume “-” means “=”.

So:

1) 10 + 7 = 17; 20 + 7 = 27; 30 + 7 = 37
2) 25 + 5 = 30; 35 + 5 = 40; 45 + 5 = 50
3) 5 × 3 = 15; 6 × 3 = 18; 6 × 3 = 18 (wait, third one is same as second? Typo? Original says: “5 x 3 - -----; 6 x 3 - -----; 6 x 3 - -----” — probably should be 7x3? But as written, both are 18. Maybe intentional? Or mistake. We’ll go with what’s written: 15, 18, 18)

But let’s check original user input:

“3) 5 x 3 - -----; 6 x 3 - -----; 6 x 3 - -----”

Yes, two 6x3. Possibly a copy error, but we’ll compute as is.

4) 25 + 25 = 50; 50 + 25 = 75; 75 + 25 = 100
5) 60 - 20 = 40; 40 - 20 = 20; 20 - 20 = 0
6) 9 × 2 = 18; 10 × 2 = 20; 11 × 2 = 22
7) 30 + 17 = 47; 40 + 17 = 57; 50 + 17 = 67
8) 5×4=20; 6×4=24; 7×4=28; 8×4=32

Answers for Activity 4:
1) 17, 27, 37
2) 30, 40, 50
3) 15, 18, 18
4) 50, 75, 100
5) 40, 20, 0
6) 18, 20, 22
7) 47, 57, 67
8) 20, 24, 28, 32

---

Activity 5: Complete the grid

This is a calculation grid. Each row and column has operations.

Grid layout (from description):

Row 1: 6 - 5 - 8 = ?
But wait, it’s a table with operators between cells.

Actually, based on standard such puzzles, it’s likely:

The grid is 4x4 with black squares indicating operation positions.

From the description:

First row: 6 [minus] 5 [minus] 8 [=] ?

But then below, there are division, plus, etc.

Actually, looking at the structure described:

It’s a magic square style where you perform operations across rows and down columns.

Given:

Top row: 6 - 5 - 8 = ? → but that would be 6-5=1, 1-8=-7? Not likely for grade level.

Alternative interpretation: The black squares contain operators, and white squares are numbers or results.

Standard format for such grids:

For example:

Row 1: 6 ÷ 2 = 3? But not matching.

Wait, let’s reconstruct from common types.

Typically, it’s like:

You have a grid where each row is an equation, and each column is also an equation.

Given the description:

"6 - 5 - 8 =" in first row — but that seems odd.

Perhaps it’s:

The grid is:

Column-wise and row-wise operations.

Another approach: Look at the example structure.

User wrote:

```
6 - 5 - 8 =
÷ + ÷
2 × 4 ÷ 1 =
× - ×
3 + 7 × 9 =
= = =
```

Ah! Now I see — it’s a 4x4 grid where the corners are numbers, and the edges have operators, and the center black squares are where you put the result of the operation.

Actually, standard "calculation cross" puzzle.

Let me interpret:

The grid has:

- Top row: start with 6, then operator "-", then 5, then operator "-", then 8, then "=" and result box.

But that would be 6 - 5 - 8 = -7 — unlikely.

Better interpretation: The black squares are the results of the operations between adjacent cells.

Common format:

For horizontal: left number [op] middle number = right number? No.

After research in mind: This is likely a grid where each row is evaluated left to right with the operators, and each column top to bottom.

But let’s try row by row.

Assume each row is a separate equation:

Row 1: 6 - 5 - 8 = ? → but that’s ambiguous without parentheses. Usually left to right: (6-5)=1, then 1-8= -7 — too advanced.

Perhaps the "-" are not operators but separators? Unlikely.

Another idea: The black squares are where you write the answer of the operation above/between.

Looking at similar worksheets, often it’s:

For example, in row 1: 6 and 5 are operands, "-" is operator, so 6 - 5 = 1, which goes in the black square below? But the grid shows black squares between.

Let’s map it as a matrix:

Positions:

(1,1)=6, (1,2)=operator '-', (1,3)=5, (1,4)=operator '-', (1,5)=8, (1,6)='=', (1,7)=result

Then below, between rows, there are vertical operators.

This is complex. Perhaps simpler: the grid is meant to be solved as:

Each "cell" in the white areas is a number, and black areas are operators or results.

Given the complexity and time, and since this is for a student, likely the intended solution is to compute each row as a sequence.

Let me try computing each row left to right with the operators given.

Row 1: 6 - 5 - 8
If left to right: 6 - 5 = 1, then 1 - 8 = -7 — but negative numbers may not be expected.

Perhaps it's 6 - (5 - 8) = 6 - (-3) = 9 — still advanced.

Another possibility: the "-" are not subtraction but dashes separating the numbers, and the actual operations are in the black squares below/above.

Look at the vertical operators:

Between row 1 and 2: under 6 is '÷', under 5 is '+', under 8 is '÷'

Then row 2: 2 × 4 ÷ 1 = ?

Similarly, between row 2 and 3: under 2 is '×', under 4 is '-', under 1 is '×'

Row 3: 3 + 7 × 9 = ?

And finally, the bottom row has '=' under each column.

So likely, the grid is to be solved by doing the row calculations, and the column calculations should match or something.

But the instruction is "Complete." — probably fill in the result boxes at the end of each row and bottom of each column.

Let’s calculate each row as written, assuming left-to-right evaluation.

Row 1: 6 - 5 - 8
= (6 - 5) - 8 = 1 - 8 = -7 — but let's hold on.

Row 2: 2 × 4 ÷ 1
Left to right: 2×4=8, 8÷1= 8

Row 3: 3 + 7 × 9
Order of operations: multiplication first: 7×9=63, then 3+63= 66

Now for columns:

Column 1: 6 ÷ 2 × 3 = ?
6÷2=3, 3×3= 9

Column 2: 5 + 4 - 7 = ?
5+4=9, 9-7= 2

Column 3: 8 ÷ 1 × 9 = ?
8÷1=8, 8×9= 72

But the bottom row has "=" under each, so probably the results of the columns go there.

However, the row results are at the end of each row.

In the grid description, after each row there is "=", so likely:

After row 1: result is for 6-5-8 = -7
After row 2: 2×4÷1 = 8
After row 3: 3+7×9 = 66

And for columns, the bottom "=" might be for the column totals.

But typically in such grids, the corner cells are inputs, and you compute row-wise and column-wise to fill the black squares.

Given the confusion, and since this is for a young student, perhaps the "-" in row 1 are typos, and it's meant to be different operations.

Another idea: perhaps the first row is 6, then operator to next cell, but the black squares are the results.

Let’s look for a standard solution.

Upon second thought, in many such worksheets, the grid is:

You have a 3x3 grid of numbers, with operators on the sides, and you compute the row and column results.

Here, it's presented as:

The white cells are:

Row 1: 6, 5, 8
Row 2: 2, 4, 1
Row 3: 3, 7, 9

With operators between them horizontally and vertically.

Specifically:

Horizontal operators:
Row 1: between 6 and 5 is '-', between 5 and 8 is '-'
Row 2: between 2 and 4 is '×', between 4 and 1 is '÷'
Row 3: between 3 and 7 is '+', between 7 and 9 is '×'

Vertical operators:
Col 1: between 6 and 2 is '÷', between 2 and 3 is '×'
Col 2: between 5 and 4 is '+', between 4 and 7 is '-'
Col 3: between 8 and 1 is '÷', between 1 and 9 is '×'

Then, the result of each row is written at the end of the row, and each column at the bottom.

So for Row 1: 6 - 5 - 8
As before, left to right: 6-5=1, 1-8= -7 — but let's assume it's 6 - 5 = 1, and then 1 - 8 = -7, but perhaps they want absolute value or something. Unlikely.

Perhaps the operators are applied sequentially, but for row 1, it's 6 minus 5 minus 8, which is indeed -7.

But for grade 3-4, negative numbers might not be introduced. So perhaps there's a mistake in my interpretation.

Another possibility: the "-" in row 1 are not operators but part of the number or something else.

Let's calculate the columns first, as they might give clues.

Col 1: 6 ÷ 2 × 3
6÷2=3, 3×3=9

Col 2: 5 + 4 - 7 = 5+4=9, 9-7=2

Col 3: 8 ÷ 1 × 9 = 8÷1=8, 8×9=72

Now for rows:

Row 2: 2 × 4 ÷ 1 = 8 ÷ 1 = 8

Row 3: 3 + 7 × 9 = 3 + 63 = 66 (since multiplication before addition)

Row 1: 6 - 5 - 8 = -7 — but if we do 6 - (5 - 8) = 6 - (-3) = 9, which matches col 1 result? Coincidence.

Perhaps the row 1 is meant to be 6, then the operator to the next is not '-', but something else.

Given the time, and since this is a common type, I recall that in some grids, the first row might be 6, 5, 8 with operators, but perhaps it's 6 * 5 / 8 or something.

Let's assume that for row 1, it's 6 - 5 = 1, and then 1 is used, but the "- 8" is separate.

I think the safest bet is to compute as per standard order, and accept -7 for row 1.

But let's check online or standard practice.

Upon reflection, in the user's initial description, it says "Activity 5: Complete." and shows a grid with a girl, so likely the answers are positive integers.

Perhaps the "-" in row 1 are typos, and it's meant to be '+' or '*'.

Another idea: perhaps the grid is to be read as:

The result of the row is placed in the black square at the end, and similarly for columns.

For row 1: if we do 6 - 5 = 1, and then 1 - 8 = -7, but maybe they want the intermediate or something.

Let's calculate the product or sum.

Sum of row 1: 6+5+8=19, but not helpful.

Perhaps the operators are between the numbers, and we evaluate the expression.

For row 1: 6 - 5 - 8 = -7

For row 2: 2 × 4 ÷ 1 = 8

For row 3: 3 + 7 × 9 = 3 + 63 = 66

For col 1: 6 ÷ 2 × 3 = 9

Col 2: 5 + 4 - 7 = 2

Col 3: 8 ÷ 1 × 9 = 72

Then the bottom row under "=" might be the column results: 9, 2, 72

And the rightmost column under "=" might be the row results: -7, 8, 66

But -7 is problematic.

Perhaps for row 1, it's 6, then the operator is for the column, but that doesn't help.

Another interpretation: the black squares are where you write the result of the operation above or left.

For example, between 6 and 5, there is a '-' , so 6 - 5 = 1, write 1 in the black square below or between.

In many such puzzles, the black square between two numbers contains the result of the operation.

So for instance, between 6 and 5, '-' means 6 - 5 = 1, so put 1 in the black square.

Then between that 1 and 8, '-' means 1 - 8 = -7, put in next black square.

But then at the end, "=" and result box.

This is messy.

Perhaps the grid is:

The first row has three numbers: 6, 5, 8, and the operators are below them for vertical operations, and the horizontal operators are in the row.

I think I need to make a decision.

Let me assume that for each row, we evaluate the expression as written with left-to-right for same precedence, and for mixed, use PEMDAS.

So:

Row 1: 6 - 5 - 8 = (6-5)-8 = 1-8 = -7

Row 2: 2 × 4 ÷ 1 = (2×4)÷1 = 8÷1 = 8

Row 3: 3 + 7 × 9 = 3 + (7×9) = 3+63 = 66

For columns:

Col 1: 6 ÷ 2 × 3 = (6÷2)×3 = 3×3 = 9

Col 2: 5 + 4 - 7 = (5+4)-7 = 9-7 = 2

Col 3: 8 ÷ 1 × 9 = (8÷1)×9 = 8×9 = 72

Then the final answer for the grid is to fill the result boxes:

At the end of row 1: -7

End of row 2: 8

End of row 3: 66

At the bottom of col 1: 9

Bottom of col 2: 2

Bottom of col 3: 72

But since the problem says "Complete.", and there is a girl, perhaps only the row results are needed, or all.

In the grid description, after each row there is "=", so likely the row results are to be filled there.

Similarly, at the bottom, under each column, there is "=", so column results there.

So for the answer, we can list the row results and column results.

But to simplify, perhaps the expected answer is the row results.

Given that, and to move forward, I'll provide the row results as the main answer for Activity 5.

So:

Row 1: -7
Row 2: 8
Row 3: 66

But let's double-check row 3: 3 + 7 × 9 — multiplication first, so 7×9=63, 3+63=66, correct.

Row 2: 2×4=8, 8÷1=8, correct.

Row 1: 6-5=1, 1-8= -7, correct mathematically.

Perhaps in the context, they allow negative numbers, or it's a trick.

Maybe the first "-" is not subtraction, but a dash, and the operation is different.

Another possibility: in some fonts, "-" might be used for "to" or something, but unlikely.

Perhaps it's 6, then the operator is for the next cell, but the black square is the result.

I recall that in some worksheets, the grid is solved by doing the operation between the number and the operator to get the next number.

For example, start with 6, apply '-' with 5 to get 1, then apply '-' with 8 to get -7.

Same thing.

I think we have to go with -7.

So for Activity 5, the results are:

Row 1: -7
Row 2: 8
Row 3: 66

And for columns, if needed, 9, 2, 72, but since the question is "Complete." and the grid has "=" at the end of rows, likely the row results are primary.

So I'll box the row results.

But to be thorough, let's see if there's a different interpretation.

Suppose the operators in the row are not all applied; perhaps only one operation per row.

For example, row 1: 6 - 5 = 1, and 8 is separate, but that doesn't fit.

Perhaps the " - 8" is for the column.

I think it's best to proceed with the calculation as is.

So Final Answer for Activity 5 row results: -7, 8, 66

But let's write it as per the grid.

Perhaps the answer is to fill the black squares, but the user didn't specify.

Given the constraints, I'll provide the row evaluation results.

So for Activity 5:

The completed row equations are:
6 - 5 - 8 = -7
2 × 4 ÷ 1 = 8
3 + 7 × 9 = 66

So the answers to fill in are -7, 8, 66 for the row results.

For the column results, if required, 9, 2, 72, but I think for this context, the row results are sufficient.

So I'll include them.

Now, compiling all answers.

Final Answer:

Activity 1:
1) 29
2) 5
3) more
4) 46
5) 19
6) less
7) 17
8) 83

Activity 2:
1) 116, 126, 261
2) 18, 58, 85
3) 110, 111, 113
4) 114, 116, 141
5) 34, 43, 343
6) 133, 137, 173
7) 86, 89, 98
8) 14, 141, 144

Activity 3:
1) 1, 6
2) 5, 6
3) 5, 8
4) 2, 5
5) 5, 9
6) 3, 5
7) 4, 6
8) 6, 7

Activity 4:
1) 17, 27, 37
2) 30, 40, 50
3) 15, 18, 18
4) 50, 75, 100
5) 40, 20, 0
6) 18, 20, 22
7) 47, 57, 67
8) 20, 24, 28, 32

Activity 5:
Row 1 result: -7
Row 2 result: 8
Row 3 result: 66

(Note: For Activity 5, if column results are also required, they are 9, 2, 72 respectively.)

But since the problem likely expects the row results for the "=" at the end of each row, I'll go with that.

So Final Answer as above.
Parent Tip: Review the logic above to help your child master the concept of mental math worksheet grade 2.
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