跟着消防员爸爸学习C++编程与算法（请备注算法学习）
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一、写出得数
| 3 × 3 = | 4 × 7 = | 4700 - 700 = | 21 ÷ 7 = | 3000 + 600 = |
| 8100 - 400 = | 37 ÷ 5 = | 5500 - 5000 = | 30 - 21 = | 59 + 27 = |
| 12 ÷ 2 = | 100 + 500 = | 300 + 600 = | 3200 - 800 = | 45 ÷ 9 = |
| 8 × 8 = | 21 ÷ 5 = | 1200 - 1000 = | 600 + 400 = | 4 × 5 = |
| 45 ÷ 9 = | 500 + 400 = | 2000 + 600 = | 200 + 600 = | 700 + 500 = |
| 300 + 6000 = | 36 ÷ 9 = | 92 - 44 = | 72 ÷ 9 = | 700 + 900 = |
| 5500 - 100 = | 200 + 6000 = | 49 ÷ 7 = | 4700 - 4000 = | 80 - 45 = |
| 62 ÷ 8 = | 55 + 35 = | 8000 - 100 = | 900 + 600 = | 5500 - 500 = |
| 4 × 4 = | 6 × 6 = | 20 ÷ 3 = | 1700 - 300 = | 8 × 5 = |
| 1500 - 500 = | 5500 - 1000 = | 200 + 100 = | 7400 - 1000 = | 71 - 59 = |
| 6 ÷ 6 = | 3300 - 400 = | 9 × 8 = | 500 + 500 = | 83 + 12 ÷ 4 = |
| 45 + 2 × 9 = | 71 - 14 + 37 = | 18 + 7 × 8 = | 2 ÷ 2 + 16 = | 75 + 18 - 23 = |
二、填括号
| 82 + ( ) = 98 | ( ) + 800 = 1700 | 7 × ( ) = 56 | 45 ÷ ( ) = 5 |
| ( ) - 700 = 2600 | 800 + ( ) = 1100 | 16 ÷ ( ) = 8 | ( ) - 400 = 5100 |
| 68 - ( ) = 52 | ( ) ÷ 2 = 6 |
三、竖式计算题，带“※” 要验算
| 231 - 194 = | 599 + 133 = | ※ 745 - 680 = | 342 + 307 - 605 = |
| 58 ÷ 9 = | 12 ÷ 7 = | ※ 231 + 745 = | 845 - 605 + 615 = |
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