Hundreds, tens and ones · sheet 22 of 30
Answer key
The answer, and what a wrong answer means.
| # | Problem | Answer | If they wrote… |
|---|---|---|---|
| 1 | 6 hundreds, 15 tens, 3 ones | 753 | 6153 the unit never changes when you regroup |
| 2 | 7 hundreds, 11 tens, 3 ones | 813 | 7113 the unit never changes when you regroup |
| 3 | 4 hundreds, 0 tens, 2 ones | 402 | 6 a digit's value is its face value |
| 4 | 3 hundreds, 9 tens, 0 ones | 390 | 12 a digit's value is its face value |
| 5 | 3 hundreds, 0 tens, 2 ones | 302 | 5 a digit's value is its face value |
| 6 | 4 hundreds, 5 tens, 4 ones | 454 | 13 a digit's value is its face value |
| 7 | 2 hundreds, 10 tens, 6 ones | 306 | 2106 the unit never changes when you regroup |
| 8 | 6 hundreds, 8 tens, 3 ones | 683 | 17 a digit's value is its face value |
| 9 | 1 hundred, 10 tens, 7 ones | 207 | 1107 the unit never changes when you regroup |
| 10 | 8 hundreds, 11 tens, 5 ones | 915 | 8115 the unit never changes when you regroup |
| 11 | 3 hundreds, 3 tens, 8 ones | 338 | 14 a digit's value is its face value |
| 12 | 3 hundreds, 6 tens, 0 ones | 360 | 9 a digit's value is its face value |
| 13 | 6 hundreds, 0 tens, 7 ones | 607 | 13 a digit's value is its face value |
| 14 | 1 hundred, 0 tens, 7 ones | 107 | 8 a digit's value is its face value |
| 15 | 9 hundreds, 4 tens, 5 ones | 945 | 18 a digit's value is its face value |
| 16 | 3 hundreds, 5 tens, 0 ones | 350 | 8 a digit's value is its face value |
| 17 | 6 hundreds, 1 ten, 7 ones | 617 | 14 a digit's value is its face value |
| 18 | 8 hundreds, 8 tens, 3 ones | 883 | 19 a digit's value is its face value |
| 19 | 4 hundreds, 5 tens, 0 ones | 450 | 9 a digit's value is its face value |
| 20 | 2 hundreds, 14 tens, 2 ones | 342 | 2142 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.