Rounding to the nearest ten and hundred · sheet 1 of 30
Answer key
The answer, and what a wrong answer means.
| # | Problem | Answer | If they wrote… |
|---|---|---|---|
| 1 | Round 365 to the nearest ten | 370 | 360 cutting the number off instead of rounding |
| 2 | Round 143 to the nearest ten | 140 | no pattern to catch here |
| 3 | Round 579 to the nearest ten | 580 | 570 cutting the number off instead of rounding |
| 4 | Round 350 to the nearest hundred | 400 | 300 cutting the number off instead of rounding or rounding at the wrong place |
| 5 | Round 213 to the nearest hundred | 200 | no pattern to catch here |
| 6 | Round 725 to the nearest ten | 730 | 720 cutting the number off instead of rounding or rounding at the wrong place |
| 7 | Round 334 to the nearest hundred | 300 | no pattern to catch here |
| 8 | Round 550 to the nearest hundred | 600 | 500 cutting the number off instead of rounding |
| 9 | Round 637 to the nearest hundred | 600 | 700 rounding at the wrong place |
| 10 | Round 457 to the nearest hundred | 500 | 400 cutting the number off instead of rounding or rounding at the wrong place |
| 11 | Round 131 to the nearest hundred | 100 | no pattern to catch here |
| 12 | Round 342 to the nearest hundred | 300 | no pattern to catch here |
| 13 | Round 650 to the nearest hundred | 700 | 600 cutting the number off instead of rounding |
| 14 | Round 326 to the nearest hundred | 300 | no pattern to catch here |
| 15 | Round 128 to the nearest ten | 130 | 120 cutting the number off instead of rounding or rounding at the wrong place |
| 16 | Round 166 to the nearest ten | 170 | 160 cutting the number off instead of rounding |
| 17 | Round 834 to the nearest ten | 830 | no pattern to catch here |
| 18 | Round 141 to the nearest ten | 140 | no pattern to catch here |
| 19 | Round 274 to the nearest ten | 270 | 280 rounding at the wrong place |
| 20 | Round 895 to the nearest ten | 900 | 890 cutting the number off instead of rounding |
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.