Let’s solve each problem one by one, following the
Order of Operations (PEMDAS):
>
Parentheses
>
Exponents
>
Multiplication and
Division (left to right)
>
Addition and
Subtraction (left to right)
We don’t have parentheses or exponents here, so we do multiplication/division first (from left to right), then addition/subtraction (also left to right).
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1. 6 × 6 + 3 × 4 = ?
First, multiply:
- 6 × 6 = 36
- 3 × 4 = 12
Then add:
- 36 + 12 =
48
✔ Final Answer for #1:
48
---
2. 28 - 8 × 3 + 16 = ?
First, multiply:
- 8 × 3 = 24
Now rewrite: 28 - 24 + 16
Do subtraction and addition left to right:
- 28 - 24 = 4
- 4 + 16 =
20
✔ Final Answer for #2:
20
---
3. 56 ÷ 7 × 5 + 60 = ?
Division and multiplication from left to right:
- 56 ÷ 7 = 8
- 8 × 5 = 40
Then add:
- 40 + 60 =
100
✔ Final Answer for #3:
100
---
4. 24 ÷ 8 - 12 ÷ 6 = ?
Divide both parts:
- 24 ÷ 8 = 3
- 12 ÷ 6 = 2
Then subtract:
- 3 - 2 =
1
✔ Final Answer for #4:
1
---
5. 10 × 10 + 10 × 10 = ?
Multiply both:
- 10 × 10 = 100
- 10 × 10 = 100
Add:
- 100 + 100 =
200
✔ Final Answer for #5:
200
---
6. 90 + 8 × 5 - 30 = ?
Multiply first:
- 8 × 5 = 40
Rewrite: 90 + 40 - 30
Left to right:
- 90 + 40 = 130
- 130 - 30 =
100
✔ Final Answer for #6:
100
---
7. 30 ÷ 5 + 3 × 3 = ?
Divide and multiply:
- 30 ÷ 5 = 6
- 3 × 3 = 9
Add:
- 6 + 9 =
15
✔ Final Answer for #7:
15
---
8. 96 ÷ 12 × 4 + 8 = ?
Left to right for division/multiplication:
- 96 ÷ 12 = 8
- 8 × 4 = 32
Then add:
- 32 + 8 =
40
✔ Final Answer for #8:
40
---
9. 50 - 25 × 2 = ?
Multiply first:
- 25 × 2 = 50
Then subtract:
- 50 - 50 =
0
✔ Final Answer for #9:
0
---
10. 80 - 15 × 2 × 2 = ?
Multiply left to right:
- 15 × 2 = 30
- 30 × 2 = 60
Then subtract:
- 80 - 60 =
20
✔ Final Answer for #10:
20
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Final Answer:
1. 48
2. 20
3. 100
4. 1
5. 200
6. 100
7. 15
8. 40
9. 0
10. 20
Parent Tip: Review the logic above to help your child master the concept of grade four worksheet.
