Comparing numbers and decimals · sheet 13 of 30
Answer key
The answer, and what a wrong answer means.
| # | Problem | Answer | If they wrote… |
|---|---|---|---|
| 1 | 0.40 ○ 0.4 | = | < the shorter decimal is bigger> the longer decimal is bigger |
| 2 | 0.18 ○ 0.82 | < | no pattern to catch here |
| 3 | 823 ○ 828 | < | no pattern to catch here |
| 4 | 480 ○ 700 | < | no pattern to catch here |
| 5 | 469 ○ 468 | > | no pattern to catch here |
| 6 | 388 ○ 397 | < | > comparing numbers by the ones digit first |
| 7 | 0.21 ○ 0.2 | > | < the shorter decimal is bigger |
| 8 | 715 ○ 436 | > | < comparing numbers by the ones digit first |
| 9 | 218 ○ 406 | < | > comparing numbers by the ones digit first |
| 10 | 0.22 ○ 0.3 | < | > the longer decimal is bigger |
| 11 | 188 ○ 134 | > | no pattern to catch here |
| 12 | 984 ○ 107 | > | < comparing numbers by the ones digit first |
| 13 | 858 ○ 758 | > | no pattern to catch here |
| 14 | 0.2 ○ 0.12 | > | < the longer decimal is bigger |
| 15 | 867 ○ 933 | < | > comparing numbers by the ones digit first |
| 16 | 933 ○ 979 | < | no pattern to catch here |
| 17 | 0.1 ○ 0.43 | < | > the shorter decimal is bigger |
| 18 | 0.21 ○ 0.14 | > | no pattern to catch here |
| 19 | 0.3 ○ 0.30 | = | < the longer decimal is bigger> the shorter decimal is bigger |
| 20 | 929 ○ 729 | > | no pattern to catch here |
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.