Hundreds, tens and ones · sheet 29 of 30
Answer key
The answer, and what a wrong answer means.
| # | Problem | Answer | If they wrote… |
|---|---|---|---|
| 1 | 8 hundreds, 4 tens, 4 ones | 844 | 16 a digit's value is its face value |
| 2 | 5 hundreds, 8 tens, 2 ones | 582 | 15 a digit's value is its face value |
| 3 | 8 hundreds, 2 tens, 0 ones | 820 | 10 a digit's value is its face value |
| 4 | 4 hundreds, 0 tens, 4 ones | 404 | 8 a digit's value is its face value |
| 5 | 3 hundreds, 11 tens, 5 ones | 415 | 3115 the unit never changes when you regroup |
| 6 | 5 hundreds, 12 tens, 2 ones | 622 | 5122 the unit never changes when you regroup |
| 7 | 2 hundreds, 9 tens, 9 ones | 299 | 20 a digit's value is its face value |
| 8 | 7 hundreds, 7 tens, 7 ones | 777 | 21 a digit's value is its face value |
| 9 | 5 hundreds, 8 tens, 0 ones | 580 | 13 a digit's value is its face value |
| 10 | 3 hundreds, 0 tens, 2 ones | 302 | 5 a digit's value is its face value |
| 11 | 8 hundreds, 7 tens, 2 ones | 872 | 17 a digit's value is its face value |
| 12 | 4 hundreds, 9 tens, 7 ones | 497 | 20 a digit's value is its face value |
| 13 | 1 hundred, 10 tens, 9 ones | 209 | 1109 the unit never changes when you regroup |
| 14 | 5 hundreds, 10 tens, 2 ones | 602 | 5102 the unit never changes when you regroup |
| 15 | 2 hundreds, 11 tens, 7 ones | 317 | 2117 the unit never changes when you regroup |
| 16 | 7 hundreds, 13 tens, 3 ones | 833 | 7133 the unit never changes when you regroup |
| 17 | 3 hundreds, 8 tens, 0 ones | 380 | 11 a digit's value is its face value |
| 18 | 8 hundreds, 1 ten, 0 ones | 810 | 9 a digit's value is its face value |
| 19 | 3 hundreds, 0 tens, 9 ones | 309 | 12 a digit's value is its face value |
| 20 | 1 hundred, 0 tens, 3 ones | 103 | 4 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.