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8.5%(3.6+6.8)÷1.3

8.5-(3.6+6.8)÷1.3 =8.5-(3.2+6.8+0.4)➗1.3 =8.5-10.4➗1.3 =8.5-8 =0.5

8.5-(3.6+6.8)÷1.3 =8.5-10.4÷1.3 =8.5-8 =0.5 没有简便方法,直接计算

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= ...

你好,很高兴为你解答 3.6÷(2/3)+20%x=6.8 求未知数 具体过程如下图

(1)[8.5-(3.6+3.6)]÷2.6=[8.5-7.2]÷2.6=1.3÷2.6=0.5;(2)10.1×87=(10+0.1)×87=10×87+0.1×87=870+8.7=878.7;(3)1.4×[(7.5+38.4)÷0.9]=1.4×[45.9÷0.9]=1.4×51=71.4.

年后还有法国大怒日本

7.8×6.4+3.6×1.3+3.6×6.5 =7.8×6.4+3.6×(6.5+1.3) =7.8x6.4+3.6x7.8 =7.8x(6.4+3.6) =7.8x10 =78

①1.4+3.6÷1.44×0.08 =1.4+2.5×0.08=1.4+0.2=1.6 ②0.83×6.8+11.7×0.68 =5.644+7.956=65.396=13.6 ③(3.12+0.9)÷[(1-0.4)÷0.1]=4.02÷[0.6÷0.1]=4.02÷6=0.67

7.8*6.4 +3.6*1.3 +3.6*6.5 =7.8*6.4 +3.6*【1.3+6.5】 =7.8*【6.4+3.6】 =78 满意采纳

1. 3.625÷5/32+6又2/5×3/8+6.4 =3又5/8x32/5+32/5x3/8+6.4 =(3又5/8+3/8)x6.4+6.4 =4x6.4+6.4 =(4+1)x6.4 =5x6.4 =32 2. 45÷5/8+1.6+4.4×1又3/5 =45x8/5+8/5+4.4x8/5 =(45+1+4.4)x8/5 =(50+0.4)x8/5 =50x8/5+0.4x8/5 =80+0.64 =80.64 3. 8/9×【3...

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