Hundreds, tens and ones · sheet 14 of 30
Answer key
The answer, and what a wrong answer means.
| # | Problem | Answer | If they wrote… |
|---|---|---|---|
| 1 | 8 hundreds, 3 tens, 9 ones | 839 | 20 a digit's value is its face value |
| 2 | 7 hundreds, 3 tens, 9 ones | 739 | 19 a digit's value is its face value |
| 3 | 4 hundreds, 9 tens, 5 ones | 495 | 18 a digit's value is its face value |
| 4 | 8 hundreds, 12 tens, 3 ones | 923 | 8123 the unit never changes when you regroup |
| 5 | 1 hundred, 10 tens, 8 ones | 208 | 1108 the unit never changes when you regroup |
| 6 | 9 hundreds, 7 tens, 0 ones | 970 | 16 a digit's value is its face value |
| 7 | 2 hundreds, 2 tens, 0 ones | 220 | 4 a digit's value is its face value |
| 8 | 5 hundreds, 7 tens, 9 ones | 579 | 21 a digit's value is its face value |
| 9 | 5 hundreds, 0 tens, 7 ones | 507 | 12 a digit's value is its face value |
| 10 | 3 hundreds, 0 tens, 4 ones | 304 | 7 a digit's value is its face value |
| 11 | 3 hundreds, 8 tens, 0 ones | 380 | 11 a digit's value is its face value |
| 12 | 5 hundreds, 10 tens, 0 ones | 600 | 5100 the unit never changes when you regroup |
| 13 | 3 hundreds, 0 tens, 7 ones | 307 | 10 a digit's value is its face value |
| 14 | 6 hundreds, 15 tens, 9 ones | 759 | 6159 the unit never changes when you regroup |
| 15 | 8 hundreds, 7 tens, 3 ones | 873 | 18 a digit's value is its face value |
| 16 | 9 hundreds, 6 tens, 1 one | 961 | 16 a digit's value is its face value |
| 17 | 4 hundreds, 0 tens, 6 ones | 406 | 10 a digit's value is its face value |
| 18 | 3 hundreds, 13 tens, 6 ones | 436 | 3136 the unit never changes when you regroup |
| 19 | 2 hundreds, 3 tens, 0 ones | 230 | 5 a digit's value is its face value |
| 20 | 4 hundreds, 12 tens, 6 ones | 526 | 4126 the unit never changes when you regroup |
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.