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
| 25 ÷ 5 = | 18 ÷ 2 = | 7 × 6 = | 5800 - 800 = | 35 ÷ 5 = |
| 800 + 700 = | 81 - 52 = | 5400 - 5000 = | 9 × 5 = | 10 ÷ 7 = |
| 45 ÷ 6 = | 600 + 200 = | 9 × 4 = | 900 + 500 = | 500 + 300 = |
| 3300 - 400 = | 6 × 7 = | 32 ÷ 4 = | 9200 - 300 = | 100 + 900 = |
| 9500 - 800 = | 300 + 400 = | 32 ÷ 5 = | 6000 + 200 = | 5400 - 400 = |
| 55 + 26 = | 600 + 2000 = | 700 + 500 = | 3800 - 800 = | 2 ÷ 2 = |
| 500 + 3000 = | 8500 - 500 = | 2500 - 600 = | 3 × 7 = | 200 + 900 = |
| 4900 - 900 = | 20 ÷ 9 = | 63 - 45 = | 1200 - 800 = | 5 × 5 = |
| 3 × 8 = | 800 + 900 = | 54 ÷ 9 = | 4 × 9 = | 5000 + 300 = |
| 66 + 25 = | 300 + 500 = | 5800 - 5000 = | 82 - 46 = | 76 - 69 = |
| 20 ÷ 5 = | 63 ÷ 7 = | 7200 - 300 = | 1200 - 700 = | 3 - 18 ÷ 9 = |
| 78 - 4 × 6 = | 36 + 45 ÷ 9 = | 54 + 17 - 65 = | 35 + 28 - 45 = | 94 - 5 × 6 = |
二、填括号
| 83 + ( ) = 94 | 20 ÷ ( ) = 4 | ( ) ÷ 4 = 8 | ( ) + 500 = 1400 |
| 2400 - ( ) = 1500 | 63 - ( ) = 21 | ( ) ÷ 9 = 2 | 9600 - ( ) = 8800 |
| ( ) × 6 = 30 | ( ) + 200 = 800 |
三、竖式计算题，带“※” 要验算
| 941 - 256 = | 633 - 221 + 280 = | 822 - 654 - 119 = | 39 ÷ 4 = |
| ※ 449 - 391 = | 385 + 536 = | 29 ÷ 9 = | ※ 670 + 221 = |
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