Hundreds, tens and ones · sheet 8 of 30
Answer key
The answer, and what a wrong answer means.
| # | Problem | Answer | If they wrote… |
|---|---|---|---|
| 1 | 9 hundreds, 5 tens, 0 ones | 950 | 14 a digit's value is its face value |
| 2 | 5 hundreds, 0 tens, 2 ones | 502 | 7 a digit's value is its face value |
| 3 | 2 hundreds, 13 tens, 9 ones | 339 | 2139 the unit never changes when you regroup |
| 4 | 2 hundreds, 5 tens, 7 ones | 257 | 14 a digit's value is its face value |
| 5 | 5 hundreds, 6 tens, 9 ones | 569 | 20 a digit's value is its face value |
| 6 | 9 hundreds, 2 tens, 2 ones | 922 | 13 a digit's value is its face value |
| 7 | 9 hundreds, 1 ten, 0 ones | 910 | 10 a digit's value is its face value |
| 8 | 2 hundreds, 0 tens, 5 ones | 205 | 7 a digit's value is its face value |
| 9 | 3 hundreds, 10 tens, 1 one | 401 | 3101 the unit never changes when you regroup |
| 10 | 8 hundreds, 0 tens, 6 ones | 806 | 14 a digit's value is its face value |
| 11 | 7 hundreds, 12 tens, 4 ones | 824 | 7124 the unit never changes when you regroup |
| 12 | 4 hundreds, 3 tens, 8 ones | 438 | 15 a digit's value is its face value |
| 13 | 5 hundreds, 10 tens, 0 ones | 600 | 5100 the unit never changes when you regroup |
| 14 | 4 hundreds, 0 tens, 3 ones | 403 | 7 a digit's value is its face value |
| 15 | 5 hundreds, 5 tens, 6 ones | 556 | 16 a digit's value is its face value |
| 16 | 3 hundreds, 13 tens, 8 ones | 438 | 3138 the unit never changes when you regroup |
| 17 | 1 hundred, 3 tens, 9 ones | 139 | 13 a digit's value is its face value |
| 18 | 8 hundreds, 7 tens, 0 ones | 870 | 15 a digit's value is its face value |
| 19 | 4 hundreds, 4 tens, 0 ones | 440 | 8 a digit's value is its face value |
| 20 | 4 hundreds, 11 tens, 6 ones | 516 | 4116 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.