Rounding to the nearest ten and hundred · sheet 29 of 30
Answer key
The answer, and what a wrong answer means.
| # | Problem | Answer | If they wrote… |
|---|---|---|---|
| 1 | Round 92 to the nearest ten | 90 | 100 rounding at the wrong place |
| 2 | Round 973 to the nearest ten | 970 | 980 rounding at the wrong place |
| 3 | Round 850 to the nearest hundred | 900 | 800 cutting the number off instead of rounding |
| 4 | Round 750 to the nearest hundred | 800 | 700 cutting the number off instead of rounding |
| 5 | Round 455 to the nearest ten | 460 | 450 cutting the number off instead of rounding |
| 6 | Round 832 to the nearest hundred | 800 | 900 rounding at the wrong place |
| 7 | Round 245 to the nearest ten | 250 | 240 cutting the number off instead of rounding or rounding at the wrong place |
| 8 | Round 33 to the nearest ten | 30 | no pattern to catch here |
| 9 | Round 866 to the nearest hundred | 900 | 800 cutting the number off instead of rounding |
| 10 | Round 888 to the nearest hundred | 900 | 800 cutting the number off instead of rounding |
| 11 | Round 235 to the nearest ten | 240 | 230 cutting the number off instead of rounding or rounding at the wrong place |
| 12 | Round 550 to the nearest hundred | 600 | 500 cutting the number off instead of rounding |
| 13 | Round 131 to the nearest ten | 130 | no pattern to catch here |
| 14 | Round 129 to the nearest ten | 130 | 120 cutting the number off instead of rounding or rounding at the wrong place |
| 15 | Round 661 to the nearest hundred | 700 | 600 cutting the number off instead of rounding |
| 16 | Round 666 to the nearest hundred | 700 | 600 cutting the number off instead of rounding |
| 17 | Round 42 to the nearest ten | 40 | no pattern to catch here |
| 18 | Round 513 to the nearest hundred | 500 | 600 rounding at the wrong place |
| 19 | Round 476 to the nearest hundred | 500 | 400 cutting the number off instead of rounding or rounding at the wrong place |
| 20 | Round 619 to the nearest ten | 620 | 610 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.