Comparing numbers and decimals · sheet 22 of 30
Answer key
The answer, and what a wrong answer means.
| # | Problem | Answer | If they wrote… |
|---|---|---|---|
| 1 | 799 ○ 737 | > | no pattern to catch here |
| 2 | 0.8 ○ 0.92 | < | > the shorter decimal is bigger |
| 3 | 925 ○ 939 | < | no pattern to catch here |
| 4 | 861 ○ 811 | > | no pattern to catch here |
| 5 | 0.21 ○ 0.3 | < | > the longer decimal is bigger |
| 6 | 677 ○ 538 | > | < comparing numbers by the ones digit first |
| 7 | 568 ○ 798 | < | no pattern to catch here |
| 8 | 0.41 ○ 0.16 | > | no pattern to catch here |
| 9 | 289 ○ 282 | > | no pattern to catch here |
| 10 | 0.29 ○ 0.7 | < | > the longer decimal is bigger |
| 11 | 0.25 ○ 0.60 | < | no pattern to catch here |
| 12 | 289 ○ 189 | > | no pattern to catch here |
| 13 | 206 ○ 200 | > | no pattern to catch here |
| 14 | 0.47 ○ 0.4 | > | < the shorter decimal is bigger |
| 15 | 374 ○ 654 | < | no pattern to catch here |
| 16 | 705 ○ 814 | < | > comparing numbers by the ones digit first |
| 17 | 988 ○ 659 | > | < comparing numbers by the ones digit first |
| 18 | 0.9 ○ 0.90 | = | < the longer decimal is bigger> the shorter decimal is bigger |
| 19 | 819 ○ 967 | < | > comparing numbers by the ones digit first |
| 20 | 0.20 ○ 0.2 | = | < the shorter decimal is bigger> the longer 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.