Comparing numbers and decimals · sheet 3 of 30
Answer key
The answer, and what a wrong answer means.
| # | Problem | Answer | If they wrote… |
|---|---|---|---|
| 1 | 0.43 ○ 0.4 | > | < the shorter decimal is bigger |
| 2 | 0.5 ○ 0.50 | = | < the longer decimal is bigger> the shorter decimal is bigger |
| 3 | 0.25 ○ 0.7 | < | > the longer decimal is bigger |
| 4 | 222 ○ 224 | < | no pattern to catch here |
| 5 | 166 ○ 405 | < | > comparing numbers by the ones digit first |
| 6 | 716 ○ 905 | < | > comparing numbers by the ones digit first |
| 7 | 844 ○ 645 | > | < comparing numbers by the ones digit first |
| 8 | 0.82 ○ 0.49 | > | no pattern to catch here |
| 9 | 998 ○ 409 | > | < comparing numbers by the ones digit first |
| 10 | 428 ○ 608 | < | no pattern to catch here |
| 11 | 967 ○ 697 | > | no pattern to catch here |
| 12 | 368 ○ 383 | < | > comparing numbers by the ones digit first |
| 13 | 0.4 ○ 0.40 | = | < the longer decimal is bigger> the shorter decimal is bigger |
| 14 | 854 ○ 813 | > | no pattern to catch here |
| 15 | 329 ○ 324 | > | no pattern to catch here |
| 16 | 0.22 ○ 0.35 | < | no pattern to catch here |
| 17 | 442 ○ 462 | < | no pattern to catch here |
| 18 | 154 ○ 934 | < | no pattern to catch here |
| 19 | 0.18 ○ 0.3 | < | > the longer decimal is bigger |
| 20 | 0.1 ○ 0.41 | < | > the shorter decimal is bigger |
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.