Hundreds, tens and ones · sheet 9 of 30
Answer key
The answer, and what a wrong answer means.
| # | Problem | Answer | If they wrote… |
|---|---|---|---|
| 1 | 8 hundreds, 6 tens, 3 ones | 863 | 17 a digit's value is its face value |
| 2 | 5 hundreds, 0 tens, 3 ones | 503 | 8 a digit's value is its face value |
| 3 | 9 hundreds, 0 tens, 2 ones | 902 | 11 a digit's value is its face value |
| 4 | 9 hundreds, 4 tens, 0 ones | 940 | 13 a digit's value is its face value |
| 5 | 2 hundreds, 0 tens, 4 ones | 204 | 6 a digit's value is its face value |
| 6 | 1 hundred, 7 tens, 4 ones | 174 | 12 a digit's value is its face value |
| 7 | 7 hundreds, 7 tens, 0 ones | 770 | 14 a digit's value is its face value |
| 8 | 2 hundreds, 11 tens, 2 ones | 312 | 2112 the unit never changes when you regroup |
| 9 | 6 hundreds, 7 tens, 9 ones | 679 | 22 a digit's value is its face value |
| 10 | 5 hundreds, 2 tens, 0 ones | 520 | 7 a digit's value is its face value |
| 11 | 3 hundreds, 8 tens, 3 ones | 383 | 14 a digit's value is its face value |
| 12 | 2 hundreds, 3 tens, 7 ones | 237 | 12 a digit's value is its face value |
| 13 | 4 hundreds, 10 tens, 4 ones | 504 | 4104 the unit never changes when you regroup |
| 14 | 4 hundreds, 8 tens, 0 ones | 480 | 12 a digit's value is its face value |
| 15 | 5 hundreds, 0 tens, 9 ones | 509 | 14 a digit's value is its face value |
| 16 | 8 hundreds, 13 tens, 9 ones | 939 | 8139 the unit never changes when you regroup |
| 17 | 4 hundreds, 14 tens, 1 one | 541 | 4141 the unit never changes when you regroup |
| 18 | 7 hundreds, 14 tens, 7 ones | 847 | 7147 the unit never changes when you regroup |
| 19 | 6 hundreds, 9 tens, 4 ones | 694 | 19 a digit's value is its face value |
| 20 | 8 hundreds, 11 tens, 4 ones | 914 | 8114 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.