Aqua Blocks Activity Sheet: Students fill in blanks with the number of thousands, hundreds, tens, and ones using visual blocks and write the total number.

Let’s solve each problem step by step.

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Problem 1:

We are given blocks representing thousands, hundreds, tens, and ones.

- Thousands: There is 1 big cube → that’s 1 thousand
- Hundreds: There is 1 flat square (10x10) → that’s 1 hundred
- Tens: There are 2 long rods (each rod = 10) → that’s 2 tens
- Ones: Count the small cubes → there are 7 small cubes → that’s 7 ones

Now write the numbers:

→ ___ thousands = 1
→ ___ hundreds = 1
→ ___ tens = 2
→ ___ ones = 7

Then add them up as place values:

= 1000 + 100 + 20 + 7 = 1127

✔ Check:
1000 (thousands)
+ 100 (hundreds) = 1100
+ 20 (tens) = 1120
+ 7 (ones) = 1127

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Problem 2:

Again, count the blocks:

- Thousands: 1 big cube → 1 thousand
- Hundreds: 1 flat square → 1 hundred
- Tens: 4 long rods → 4 tens
- Ones: Count small cubes → let’s count carefully:
Top row: 2
Middle row: 3
Bottom row: 3
Total = 2 + 3 + 3 = 8 ones

So:

→ ___ thousands = 1
→ ___ hundreds = 1
→ ___ tens = 4
→ ___ ones = 8

Add them:

= 1000 + 100 + 40 + 8 = 1148

✔ Check:
1000 + 100 = 1100
1100 + 40 = 1140
1140 + 8 = 1148

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Final Answer:

Problem 1:
1 thousands, 1 hundreds, 2 tens, 7 ones
1000 + 100 + 20 + 7 = 1127

Problem 2:
1 thousands, 1 hundreds, 4 tens, 8 ones
1000 + 100 + 40 + 8 = 1148