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3.2 0.56 0.8的简便计算

(3.2+0.56)÷0.8= 3.2÷0.8 + 0.56 ÷0.8= 4 + 0.7= 4.7

3.2÷0.8=40.56÷0.8=0.74+0.7=4.7

3.2÷0.8+0.56÷0.8

=3.2÷0.8+0.56÷0.8=4+0.7=4.7

(3.2+0.56)÷0.8=(3.2÷0.8)+0.56÷0.8=4+0.7=4.7

=3.2÷0.8+0.56÷0. (3.2+0.56)÷0.8 =3.2÷0.8+0.56÷0.8 =4+0.7 =4.7

=0.8*12.5*56*1.4=10*56*1.4=56*14=7*8*7*2=98*8=(100-2)*8=800-16=784

3.2除以0.8加0.56除以8=4.07

解:(3.2 +0.48)÷0.8等于( 23/5 ),【即等于4.6】 ∵已知需求出(3.2 +0.48)÷0.8等于多少 (A + B)* C = A * C + B * C ∴(3.2 + 0.48)÷ 0.8 = [(3*10+2)/10 + 48/100] ÷ 8/10 = (32/10 + 12/25)÷ 4/5 = (16/5 + 12/25)* 5/4 = 16/5 * 5/4 + 12/25 * 5/4 = 4 + 3/5 = 20/5 + 3/5 = 23/5 = 4.6 答:(3.2 +0.48)÷0.8等于23/5,【即等于4.6】

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