Rounding to the nearest ten and hundred · sheet 27 of 30
Answer key
The answer, and what a wrong answer means.
| # | Problem | Answer | If they wrote… |
|---|---|---|---|
| 1 | Round 278 to the nearest hundred | 300 | 200 cutting the number off instead of rounding or rounding at the wrong place |
| 2 | Round 398 to the nearest ten | 400 | 390 cutting the number off instead of rounding |
| 3 | Round 585 to the nearest ten | 590 | 580 cutting the number off instead of rounding |
| 4 | Round 450 to the nearest hundred | 500 | 400 cutting the number off instead of rounding or rounding at the wrong place |
| 5 | Round 350 to the nearest hundred | 400 | 300 cutting the number off instead of rounding or rounding at the wrong place |
| 6 | Round 863 to the nearest ten | 860 | 870 rounding at the wrong place |
| 7 | Round 331 to the nearest hundred | 300 | no pattern to catch here |
| 8 | Round 868 to the nearest ten | 870 | 860 cutting the number off instead of rounding |
| 9 | Round 431 to the nearest hundred | 400 | no pattern to catch here |
| 10 | Round 125 to the nearest ten | 130 | 120 cutting the number off instead of rounding or rounding at the wrong place |
| 11 | Round 955 to the nearest ten | 960 | 950 cutting the number off instead of rounding |
| 12 | Round 721 to the nearest ten | 720 | no pattern to catch here |
| 13 | Round 506 to the nearest hundred | 500 | 600 rounding at the wrong place |
| 14 | Round 568 to the nearest hundred | 600 | 500 cutting the number off instead of rounding |
| 15 | Round 137 to the nearest hundred | 100 | no pattern to catch here |
| 16 | Round 875 to the nearest hundred | 900 | 800 cutting the number off instead of rounding |
| 17 | Round 543 to the nearest ten | 540 | no pattern to catch here |
| 18 | Round 273 to the nearest ten | 270 | 280 rounding at the wrong place |
| 19 | Round 702 to the nearest ten | 700 | no pattern to catch here |
| 20 | Round 750 to the nearest hundred | 800 | 700 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.