Rounding to the nearest ten and hundred · sheet 21 of 30
Answer key
The answer, and what a wrong answer means.
| # | Problem | Answer | If they wrote… |
|---|---|---|---|
| 1 | Round 75 to the nearest ten | 80 | 70 cutting the number off instead of rounding |
| 2 | Round 651 to the nearest hundred | 700 | 600 cutting the number off instead of rounding |
| 3 | Round 550 to the nearest hundred | 600 | 500 cutting the number off instead of rounding |
| 4 | Round 869 to the nearest ten | 870 | 860 cutting the number off instead of rounding |
| 5 | Round 403 to the nearest hundred | 400 | no pattern to catch here |
| 6 | Round 176 to the nearest ten | 180 | 170 cutting the number off instead of rounding |
| 7 | Round 955 to the nearest ten | 960 | 950 cutting the number off instead of rounding |
| 8 | Round 389 to the nearest ten | 390 | 380 cutting the number off instead of rounding |
| 9 | Round 126 to the nearest ten | 130 | 120 cutting the number off instead of rounding or rounding at the wrong place |
| 10 | Round 845 to the nearest ten | 850 | 840 cutting the number off instead of rounding or rounding at the wrong place |
| 11 | Round 471 to the nearest hundred | 500 | 400 cutting the number off instead of rounding or rounding at the wrong place |
| 12 | Round 295 to the nearest hundred | 300 | 200 cutting the number off instead of rounding or rounding at the wrong place |
| 13 | Round 750 to the nearest hundred | 800 | 700 cutting the number off instead of rounding |
| 14 | Round 858 to the nearest hundred | 900 | 800 cutting the number off instead of rounding |
| 15 | Round 250 to the nearest hundred | 300 | 200 cutting the number off instead of rounding or rounding at the wrong place |
| 16 | Round 139 to the nearest ten | 140 | 130 cutting the number off instead of rounding or rounding at the wrong place |
| 17 | Round 633 to the nearest hundred | 600 | 700 rounding at the wrong place |
| 18 | Round 480 to the nearest hundred | 500 | 400 cutting the number off instead of rounding or rounding at the wrong place |
| 19 | Round 477 to the nearest ten | 480 | 470 cutting the number off instead of rounding |
| 20 | Round 497 to the nearest ten | 500 | 490 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.