Comparing numbers and decimals · sheet 23 of 30
Answer key
The answer, and what a wrong answer means.
| # | Problem | Answer | If they wrote… |
|---|---|---|---|
| 1 | 0.71 ○ 0.67 | > | no pattern to catch here |
| 2 | 917 ○ 818 | > | < comparing numbers by the ones digit first |
| 3 | 0.73 ○ 0.37 | > | no pattern to catch here |
| 4 | 0.2 ○ 0.97 | < | > the shorter decimal is bigger |
| 5 | 888 ○ 718 | > | no pattern to catch here |
| 6 | 668 ○ 229 | > | < comparing numbers by the ones digit first |
| 7 | 420 ○ 439 | < | no pattern to catch here |
| 8 | 938 ○ 959 | < | no pattern to catch here |
| 9 | 259 ○ 258 | > | no pattern to catch here |
| 10 | 0.3 ○ 0.82 | < | > the shorter decimal is bigger |
| 11 | 0.13 ○ 0.5 | < | > the longer decimal is bigger |
| 12 | 659 ○ 774 | < | > comparing numbers by the ones digit first |
| 13 | 306 ○ 297 | > | < comparing numbers by the ones digit first |
| 14 | 506 ○ 796 | < | no pattern to catch here |
| 15 | 0.64 ○ 0.8 | < | > the longer decimal is bigger |
| 16 | 382 ○ 396 | < | no pattern to catch here |
| 17 | 980 ○ 870 | > | no pattern to catch here |
| 18 | 722 ○ 720 | > | no pattern to catch here |
| 19 | 0.30 ○ 0.3 | = | < the shorter decimal is bigger> the longer decimal is bigger |
| 20 | 0.3 ○ 0.30 | = | < the longer decimal is bigger> 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.