Hundreds, tens and ones · sheet 25 of 30
Answer key
The answer, and what a wrong answer means.
| # | Problem | Answer | If they wrote… |
|---|---|---|---|
| 1 | 6 hundreds, 0 tens, 3 ones | 603 | 9 a digit's value is its face value |
| 2 | 7 hundreds, 13 tens, 8 ones | 838 | 7138 the unit never changes when you regroup |
| 3 | 5 hundreds, 3 tens, 8 ones | 538 | 16 a digit's value is its face value |
| 4 | 3 hundreds, 3 tens, 0 ones | 330 | 6 a digit's value is its face value |
| 5 | 7 hundreds, 10 tens, 8 ones | 808 | 7108 the unit never changes when you regroup |
| 6 | 6 hundreds, 1 ten, 0 ones | 610 | 7 a digit's value is its face value |
| 7 | 1 hundred, 2 tens, 0 ones | 120 | 3 a digit's value is its face value |
| 8 | 1 hundred, 7 tens, 4 ones | 174 | 12 a digit's value is its face value |
| 9 | 7 hundreds, 0 tens, 9 ones | 709 | 16 a digit's value is its face value |
| 10 | 3 hundreds, 0 tens, 6 ones | 306 | 9 a digit's value is its face value |
| 11 | 5 hundreds, 0 tens, 7 ones | 507 | 12 a digit's value is its face value |
| 12 | 5 hundreds, 13 tens, 4 ones | 634 | 5134 the unit never changes when you regroup |
| 13 | 1 hundred, 7 tens, 1 one | 171 | 9 a digit's value is its face value |
| 14 | 7 hundreds, 14 tens, 8 ones | 848 | 7148 the unit never changes when you regroup |
| 15 | 3 hundreds, 7 tens, 8 ones | 378 | 18 a digit's value is its face value |
| 16 | 4 hundreds, 4 tens, 1 one | 441 | 9 a digit's value is its face value |
| 17 | 1 hundred, 6 tens, 0 ones | 160 | 7 a digit's value is its face value |
| 18 | 5 hundreds, 10 tens, 1 one | 601 | 5101 the unit never changes when you regroup |
| 19 | 6 hundreds, 15 tens, 1 one | 751 | 6151 the unit never changes when you regroup |
| 20 | 5 hundreds, 5 tens, 6 ones | 556 | 16 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.