Hundreds, tens and ones · sheet 17 of 30
Answer key
The answer, and what a wrong answer means.
| # | Problem | Answer | If they wrote… |
|---|---|---|---|
| 1 | 1 hundred, 7 tens, 0 ones | 170 | 8 a digit's value is its face value |
| 2 | 4 hundreds, 6 tens, 5 ones | 465 | 15 a digit's value is its face value |
| 3 | 8 hundreds, 15 tens, 1 one | 951 | 8151 the unit never changes when you regroup |
| 4 | 5 hundreds, 15 tens, 8 ones | 658 | 5158 the unit never changes when you regroup |
| 5 | 3 hundreds, 12 tens, 6 ones | 426 | 3126 the unit never changes when you regroup |
| 6 | 7 hundreds, 12 tens, 8 ones | 828 | 7128 the unit never changes when you regroup |
| 7 | 1 hundred, 9 tens, 3 ones | 193 | 13 a digit's value is its face value |
| 8 | 8 hundreds, 1 ten, 8 ones | 818 | 17 a digit's value is its face value |
| 9 | 6 hundreds, 0 tens, 4 ones | 604 | 10 a digit's value is its face value |
| 10 | 3 hundreds, 2 tens, 0 ones | 320 | 5 a digit's value is its face value |
| 11 | 4 hundreds, 6 tens, 0 ones | 460 | 10 a digit's value is its face value |
| 12 | 6 hundreds, 5 tens, 0 ones | 650 | 11 a digit's value is its face value |
| 13 | 3 hundreds, 0 tens, 1 one | 301 | 4 a digit's value is its face value |
| 14 | 1 hundred, 11 tens, 4 ones | 214 | 1114 the unit never changes when you regroup |
| 15 | 4 hundreds, 1 ten, 3 ones | 413 | 8 a digit's value is its face value |
| 16 | 5 hundreds, 14 tens, 0 ones | 640 | 5140 the unit never changes when you regroup |
| 17 | 6 hundreds, 0 tens, 1 one | 601 | 7 a digit's value is its face value |
| 18 | 9 hundreds, 0 tens, 6 ones | 906 | 15 a digit's value is its face value |
| 19 | 8 hundreds, 7 tens, 6 ones | 876 | 21 a digit's value is its face value |
| 20 | 5 hundreds, 8 tens, 1 one | 581 | 14 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.