Some, subtraia e compare
(1) Calcule.
| 23 + 6 = 29 | 84 - 2 = ____ | 36 + 3 = ____ | 43 - 1 = ____ |
| 53 - 7 = ____ | 73 + 5 = ____ | 26 + 4 = ____ | 72 - 8 = ____ |
| 78 + 6 = ____ | 47 - 0 = ____ | 50 + 3 = ____ | 90 - 9 = ____ |
| 58 - 1 = ____ | 64 + 2 = ____ | 49 - 4 = ____ | 30 + 7 = ____ |
| 70 - 7 = ____ | 65 + 4 = ____ | 60 + 3 = ____ | 62 - 1 = ____ |
| 32 + 6 = ____ | 33 - 2 = ____ | 75 + 5 = ____ | 35 - 8 = ____ |
| 61 - 8 = ____ | 68 + 6 = ____ | 34 + 2 = ____ | 38 - 4 = ____ |
| 51 + 1 = ____ | 25 - 0 = ____ | 63 + 3 = ____ | 44 - 5 = ____ |
(2) Preencha a tabela.
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(3) Coloque <, > ou =
| 39 + 38 99 | 76 17 + 24 | 72 - 58 35 | 39 + 11 2 |
| 85 40 + 31 | 90 - 60 33 | 2 16 + 14 | 79 - 18 44 |
| 12 80 - 46 | 81 - 6 55 | 98 10 + 28 | 95 - 40 36 |
| 78 - 8 15 | 73 22 + 57 | 88 - 18 31 | 15 94 - 37 | 92 20 + 54 | 26 - 53 17 | 20 75 - 27 | 70 - 5 29 |