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(8.1%5.4)÷3.6+85.7怎样简便计算

除法那部分先提取公因式 (8.1-5.4)÷3.6 = (0.9 x 9 - 0.9 x 6)÷ (0.9 x 4)= 0.9 x (9 - 6) ÷ (0.9 x 4)= 0.9 x (9 - 6) ÷ 0.9 ÷ 4= (9 - 6) ÷ 4= 0.75 (8.1-5.4)÷3.6+85.7= 0.75 + 85.7= 85 + 0.7 + 0.75= 85 + (0.7 + 0.75)= 85 + 1.45= ...

(8.1-5.4)÷3.6+85.7 =2.7÷3.6+85.7 =0.75+85.7 =86.45 , 你好,本题已解答,如果满意 请点右下角“采纳答案”。

除?不是除以? 有时间再看,以上温馨提示。

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