Let’s solve each problem step by step.
We are given:
- One flat square = 100
- One long rod (made of 10 small cubes) = 10
- One small cube = 1
We need to count how many of each we have in each row, then add them up.
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Problem 1:
- Flats (100s): 1 → 1 × 100 = 100
- Rods (10s): 1 → 1 × 10 = 10
- Cubes (1s): 5 → 5 × 1 = 5
Total: 100 + 10 + 5 =
115
✔ Check: 1 hundred, 1 ten, 5 ones → 115 — correct.
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Problem 2:
- Flats (100s): Let’s count — there are 8 stacked flats → 8 × 100 = 800
- Rods (10s): Count the rods — 6 rods → 6 × 10 = 60
- Cubes (1s): Count the small cubes — 7 → 7 × 1 = 7
Total: 800 + 60 + 7 =
867
✔ Check: 8 hundreds, 6 tens, 7 ones → 867 — correct.
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Problem 3:
- Flats (100s): 2 → 2 × 100 = 200
- Rods (10s): 9 → 9 × 10 = 90
- Cubes (1s): 8 → 8 × 1 = 8
Total: 200 + 90 + 8 =
298
✔ Check: 2 hundreds, 9 tens, 8 ones → 298 — correct.
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Problem 4:
- Flats (100s): 3 → 3 × 100 = 300
- Rods (10s): 4 → 4 × 10 = 40
- Cubes (1s): 7 → 7 × 1 = 7
Total: 300 + 40 + 7 =
347
✔ Check: 3 hundreds, 4 tens, 7 ones → 347 — correct.
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Final Answer:
1) 115
2) 867
3) 298
4) 347
Parent Tip: Review the logic above to help your child master the concept of place value to the millions worksheet.
