Rounding to the nearest ten and hundred · sheet 23 of 30
Answer key
The answer, and what a wrong answer means.
| # | Problem | Answer | If they wrote… |
|---|---|---|---|
| 1 | Round 655 to the nearest ten | 660 | 650 cutting the number off instead of rounding |
| 2 | Round 472 to the nearest hundred | 500 | 400 cutting the number off instead of rounding or rounding at the wrong place |
| 3 | Round 457 to the nearest hundred | 500 | 400 cutting the number off instead of rounding or rounding at the wrong place |
| 4 | Round 392 to the nearest ten | 390 | 400 rounding at the wrong place |
| 5 | Round 425 to the nearest ten | 430 | 420 cutting the number off instead of rounding or rounding at the wrong place |
| 6 | Round 781 to the nearest ten | 780 | 790 rounding at the wrong place |
| 7 | Round 216 to the nearest ten | 220 | 210 cutting the number off instead of rounding or rounding at the wrong place |
| 8 | Round 441 to the nearest ten | 440 | no pattern to catch here |
| 9 | Round 379 to the nearest hundred | 400 | 300 cutting the number off instead of rounding or rounding at the wrong place |
| 10 | Round 491 to the nearest hundred | 500 | 400 cutting the number off instead of rounding or rounding at the wrong place |
| 11 | Round 683 to the nearest ten | 680 | 690 rounding at the wrong place |
| 12 | Round 353 to the nearest ten | 350 | 360 rounding at the wrong place |
| 13 | Round 450 to the nearest hundred | 500 | 400 cutting the number off instead of rounding or rounding at the wrong place |
| 14 | Round 350 to the nearest hundred | 400 | 300 cutting the number off instead of rounding or rounding at the wrong place |
| 15 | Round 313 to the nearest hundred | 300 | no pattern to catch here |
| 16 | Round 228 to the nearest hundred | 200 | no pattern to catch here |
| 17 | Round 155 to the nearest ten | 160 | 150 cutting the number off instead of rounding |
| 18 | Round 650 to the nearest hundred | 700 | 600 cutting the number off instead of rounding |
| 19 | Round 849 to the nearest ten | 850 | 840 cutting the number off instead of rounding or rounding at the wrong place |
| 20 | Round 193 to the nearest hundred | 200 | 100 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.