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22x35x7用简便方法计算

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

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”。

22×35+33×7+99 =11×(70+21+9) =11×100 =1100 你好,本题已解答,如果满意 请点右上角“采纳答案”。

35x27-35x7用简便运算怎么算 35x27-35x7 =35*(27-7) =35*20 =700

555x7-25x111简便计算 解答: 555x7-25x111 =111x5x7-25x111 =111x(35-25) =111x10 =1110

35x71一71x35 =35×(71-71) =35×0 =0

42x76十42x35一42 =42x(76十35一1) =42x110 =42x(100+10)=4200+420=4620

题目应为:3.5×7.8+2.2×3.5,否则不能进行简便计算, 3.5×7.8+2.2×3.5 =3.5×(7.8+2.2) =3.5×10 =35

3.5×7.1+3.5×2.8+3.5×0.1=3.5×(7.1+2.8+0.1)=3.5×10=35

42x7.2-35x=39.9 302.4-35x=39.9 35x=302.4-39.9 35x=262.5 x=7.5

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