Hundreds, tens and ones · sheet 10 of 30
Answer key
The answer, and what a wrong answer means.
| # | Problem | Answer | If they wrote… |
|---|---|---|---|
| 1 | 6 hundreds, 1 ten, 2 ones | 612 | 9 a digit's value is its face value |
| 2 | 7 hundreds, 0 tens, 1 one | 701 | 8 a digit's value is its face value |
| 3 | 6 hundreds, 0 tens, 4 ones | 604 | 10 a digit's value is its face value |
| 4 | 6 hundreds, 3 tens, 4 ones | 634 | 13 a digit's value is its face value |
| 5 | 1 hundred, 10 tens, 4 ones | 204 | 1104 the unit never changes when you regroup |
| 6 | 2 hundreds, 10 tens, 9 ones | 309 | 2109 the unit never changes when you regroup |
| 7 | 7 hundreds, 5 tens, 0 ones | 750 | 12 a digit's value is its face value |
| 8 | 3 hundreds, 7 tens, 0 ones | 370 | 10 a digit's value is its face value |
| 9 | 5 hundreds, 0 tens, 1 one | 501 | 6 a digit's value is its face value |
| 10 | 5 hundreds, 14 tens, 6 ones | 646 | 5146 the unit never changes when you regroup |
| 11 | 2 hundreds, 14 tens, 0 ones | 340 | 2140 the unit never changes when you regroup |
| 12 | 4 hundreds, 5 tens, 0 ones | 450 | 9 a digit's value is its face value |
| 13 | 4 hundreds, 1 ten, 2 ones | 412 | 7 a digit's value is its face value |
| 14 | 6 hundreds, 2 tens, 0 ones | 620 | 8 a digit's value is its face value |
| 15 | 8 hundreds, 9 tens, 5 ones | 895 | 22 a digit's value is its face value |
| 16 | 7 hundreds, 4 tens, 5 ones | 745 | 16 a digit's value is its face value |
| 17 | 8 hundreds, 12 tens, 9 ones | 929 | 8129 the unit never changes when you regroup |
| 18 | 2 hundreds, 5 tens, 2 ones | 252 | 9 a digit's value is its face value |
| 19 | 5 hundreds, 14 tens, 5 ones | 645 | 5145 the unit never changes when you regroup |
| 20 | 7 hundreds, 0 tens, 2 ones | 702 | 9 a digit's value is its face value |
Reading the wrong answers
One wrong answer is a slip. The same pattern on three or more problems is a rule your child is following, and it has a name and a fix. Problems marked "no pattern to catch" are the plain ones; a child who gets only those right is telling you something too.