Rounding to the nearest ten and hundred · sheet 9 of 30
Answer key
The answer, and what a wrong answer means.
| # | Problem | Answer | If they wrote… |
|---|---|---|---|
| 1 | Round 866 to the nearest ten | 870 | 860 cutting the number off instead of rounding |
| 2 | Round 622 to the nearest hundred | 600 | 700 rounding at the wrong place |
| 3 | Round 293 to the nearest hundred | 300 | 200 cutting the number off instead of rounding or rounding at the wrong place |
| 4 | Round 324 to the nearest hundred | 300 | no pattern to catch here |
| 5 | Round 725 to the nearest ten | 730 | 720 cutting the number off instead of rounding or rounding at the wrong place |
| 6 | Round 777 to the nearest ten | 780 | 770 cutting the number off instead of rounding |
| 7 | Round 71 to the nearest ten | 70 | 80 rounding at the wrong place |
| 8 | Round 555 to the nearest ten | 560 | 550 cutting the number off instead of rounding |
| 9 | Round 599 to the nearest ten | 600 | 590 cutting the number off instead of rounding |
| 10 | Round 250 to the nearest hundred | 300 | 200 cutting the number off instead of rounding or rounding at the wrong place |
| 11 | Round 650 to the nearest hundred | 700 | 600 cutting the number off instead of rounding |
| 12 | Round 550 to the nearest hundred | 600 | 500 cutting the number off instead of rounding |
| 13 | Round 113 to the nearest hundred | 100 | no pattern to catch here |
| 14 | Round 430 to the nearest hundred | 400 | no pattern to catch here |
| 15 | Round 781 to the nearest hundred | 800 | 700 cutting the number off instead of rounding |
| 16 | Round 419 to the nearest ten | 420 | 410 cutting the number off instead of rounding or rounding at the wrong place |
| 17 | Round 15 to the nearest ten | 20 | 10 cutting the number off instead of rounding or rounding at the wrong place |
| 18 | Round 348 to the nearest ten | 350 | 340 cutting the number off instead of rounding or rounding at the wrong place |
| 19 | Round 49 to the nearest ten | 50 | 40 cutting the number off instead of rounding or rounding at the wrong place |
| 20 | Round 269 to the nearest hundred | 300 | 200 cutting the number off instead of rounding or rounding at the wrong place |
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.