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22x35x7用简便方法计算

22×35÷7 =22×(35÷7) =22×5 =110 你好,本题已解答,如果满意 请点右下角“采纳答案”。

22x35+33x7+99 =11*2*35+11*3*7+11*9 =11*(70+21+9) =11*100 =1100

22×35十33×7十99 =11×2×35+11×3×7+11×9 =11×70+11×21+11×9 =11×(70+21+9) =11×100 =1100

14x35 =14x5x7 =70x7 =490

运算定律与简便计算 (一)加减法运算定律 1.加法交换律 定义:两个加数交换位置,和不变 例如:16+23=23+16 546+78=78+546 2.加法结合律 定义:先把前两个数相加,或者先把后两个数相加,和不变。 注意:加法结合律有着广泛的应用,如果其中有...

408-12×24 = 408 - 288 = 120 (46+28)×60 = 74 x 60 = 4440 42×50-17 = 2100- 17 = 2083 32+105÷5 = 32 + 21 = 53 420×(327-238) = 420 x 89 = 37380 (4121+2389)÷7 = 6510 ÷7 = 930 3.416÷(0.016×35) = 3.416 ÷0.56 = 6.1 0.8×[(10...

408-12×24 = 408 - 288 = 120 (46+28)×60 = 74 x 60 = 4440 42×50-17 = 2100- 17 = 2083 32+105÷5 = 32 + 21 = 53 420×(327-238) = 420 x 89 = 37380 (4121+2389)÷7 = 6510 ÷7 = 930 3.416÷(0.016×35) = 3.416 ÷0.56 = 6.1 0.8×[(10...

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