7251122
Description
Flashcards by abraham marquez robles, updated more than 1 year ago
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Created by abraham marquez robles
about 8 years ago
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| Question | Answer |
| 31 + 23 | 30 + 20 = 50 |
| 43 + 59 | 40 + 60 = 100 |
| 18 + 34 | 20 + 30 = 50 |
| 58 + 35 | 60 + 40 = 100 |
| 69 - 19 = | 70 - 20 = 50 |
| 88 - 59 | 90 - 60 = 30 |
| 98 - 29 | 100 - 30 = 70 |
| 87 - 38 | 90 - 40 = 50 |
| 35 - 29 | 40 - 30 = 10 |
| 45 + 32 | 50 + 30 = 80 |
| 28 + 23 | 30 - 20 = 10 |
| 56 - 31 | 60 - 30 = 30 |
| 12 + 49 | 10 + 50 |
| 19 - 12 | 20 - 10 = 10 |
| 57 + 69 | 60 + 70 = 130 |
| 89 + 99 | 90 + 100 = 190 |
| 48 + 52 | 50 + 50 = 100 |
| 61 + 69 | 60 + 70 = 130 |
| 25 + 38 | 30 + 40 = 79 |
| 99 + 31 | 100 + 30 = 130 |
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