Hundreds, tens and ones · sheet 15 of 30
Answer key
The answer, and what a wrong answer means.
| # | Problem | Answer | If they wrote… |
|---|---|---|---|
| 1 | 8 hundreds, 0 tens, 2 ones | 802 | 10 a digit's value is its face value |
| 2 | 3 hundreds, 8 tens, 0 ones | 380 | 11 a digit's value is its face value |
| 3 | 6 hundreds, 9 tens, 3 ones | 693 | 18 a digit's value is its face value |
| 4 | 2 hundreds, 0 tens, 6 ones | 206 | 8 a digit's value is its face value |
| 5 | 1 hundred, 10 tens, 8 ones | 208 | 1108 the unit never changes when you regroup |
| 6 | 7 hundreds, 9 tens, 0 ones | 790 | 16 a digit's value is its face value |
| 7 | 8 hundreds, 1 ten, 3 ones | 813 | 12 a digit's value is its face value |
| 8 | 8 hundreds, 1 ten, 0 ones | 810 | 9 a digit's value is its face value |
| 9 | 5 hundreds, 11 tens, 7 ones | 617 | 5117 the unit never changes when you regroup |
| 10 | 2 hundreds, 13 tens, 2 ones | 332 | 2132 the unit never changes when you regroup |
| 11 | 9 hundreds, 2 tens, 5 ones | 925 | 16 a digit's value is its face value |
| 12 | 3 hundreds, 10 tens, 7 ones | 407 | 3107 the unit never changes when you regroup |
| 13 | 5 hundreds, 7 tens, 4 ones | 574 | 16 a digit's value is its face value |
| 14 | 5 hundreds, 5 tens, 7 ones | 557 | 17 a digit's value is its face value |
| 15 | 4 hundreds, 0 tens, 2 ones | 402 | 6 a digit's value is its face value |
| 16 | 3 hundreds, 14 tens, 2 ones | 442 | 3142 the unit never changes when you regroup |
| 17 | 6 hundreds, 7 tens, 0 ones | 670 | 13 a digit's value is its face value |
| 18 | 2 hundreds, 8 tens, 2 ones | 282 | 12 a digit's value is its face value |
| 19 | 3 hundreds, 0 tens, 4 ones | 304 | 7 a digit's value is its face value |
| 20 | 4 hundreds, 12 tens, 8 ones | 528 | 4128 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.