Rounding to the nearest ten and hundred · sheet 20 of 30
Answer key
The answer, and what a wrong answer means.
| # | Problem | Answer | If they wrote… |
|---|---|---|---|
| 1 | Round 607 to the nearest ten | 610 | 600 cutting the number off instead of rounding or rounding at the wrong place |
| 2 | Round 328 to the nearest hundred | 300 | no pattern to catch here |
| 3 | Round 456 to the nearest hundred | 500 | 400 cutting the number off instead of rounding or rounding at the wrong place |
| 4 | Round 387 to the nearest ten | 390 | 380 cutting the number off instead of rounding |
| 5 | Round 615 to the nearest ten | 620 | 610 cutting the number off instead of rounding or rounding at the wrong place |
| 6 | Round 643 to the nearest hundred | 600 | 700 rounding at the wrong place |
| 7 | Round 721 to the nearest hundred | 700 | 800 rounding at the wrong place |
| 8 | Round 833 to the nearest ten | 830 | no pattern to catch here |
| 9 | Round 164 to the nearest ten | 160 | 170 rounding at the wrong place |
| 10 | Round 750 to the nearest hundred | 800 | 700 cutting the number off instead of rounding |
| 11 | Round 305 to the nearest ten | 310 | 300 cutting the number off instead of rounding or rounding at the wrong place |
| 12 | Round 371 to the nearest hundred | 400 | 300 cutting the number off instead of rounding or rounding at the wrong place |
| 13 | Round 550 to the nearest hundred | 600 | 500 cutting the number off instead of rounding |
| 14 | Round 754 to the nearest ten | 750 | 760 rounding at the wrong place |
| 15 | Round 650 to the nearest hundred | 700 | 600 cutting the number off instead of rounding |
| 16 | Round 299 to the nearest ten | 300 | 290 cutting the number off instead of rounding |
| 17 | Round 485 to the nearest ten | 490 | 480 cutting the number off instead of rounding |
| 18 | Round 241 to the nearest hundred | 200 | no pattern to catch here |
| 19 | Round 877 to the nearest ten | 880 | 870 cutting the number off instead of rounding |
| 20 | Round 765 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.