5.6乘69.32加138.64乘0.05加693,2乘0.43-搜答案-智慧作业帮

4.4+4.4x12+13x5.6=4.4x(1+12)+5.6x13=4.4x13+5.6x13=(4.4+5.6)x13=10x13=130

=46.3×0.56+53.8×0.56-0.1×0.56=(46.3+53.8-0.1)×0.56=100×0.56=56

3.17×2.58+3.17×7.42=3.17×(2.58+7.42)=3.17×10=31.7

30300

5.6×8.8+0.56×12=5.6×8.8+5.6×1.2=5.6×(8.8+1.2)=5.6×10=56

7.4×5.6+7.6×5.4-7.4=7.4×5.6+（7.4+0.2）×5.4-7.4=7.4×5.6+7.4×5.4+0.2×5.4-7.4=7.4（5.6+5.4-1）+0.2×5.4=7.4

设那数为X0.27*5.6+5.6X+5.6*0.25=0.78*0.565.6*(0.27+X+0.25)=0.078*5.60.52+X=0.078X=-0.442

2乘3乘4加4乘6乘8加.加200乘300乘400=2×3×4×（1+2+3+.+100）=24×（1+100）×100÷2=24×5050=121200

5.6除以0.75加4/3乘0.4=5.6÷4分之3+3分之4*0.4=5.6*3分之4+3分之4*0.4=（5.6+0.4）*3分之4=6*3分之4=8

5.6*0.7+0.2*5.6+0.56=5.6*0.7+0.2*5.6+5.6*0.1=5.6*（0.7+0.2+0.1）=5.6*1=5.6

太简单了!就是0.45乘5.6加4.5乘0.54减0.54=0.45乘5.6加0.45乘5.4减0.54=0.45乘（5.6加5.4）减0.54=0.45乘11减0.54=4.95减0.54=4.41

5.6*69.32+138.64*0.05+693.2*0.43=5.6*0.1*693.2+693.2*0.2*0.05+693.2*0.43=0.56*693.2+693.2*0.01+693.2

9.9*5.6+0.56=9.9*0.56*10+0.56=99*0.56+0.56=0.56*(99+1)=0.56*100=56再问：4.4*5.5-44*0.33-0.44*22

5.6✘9.9+99+1

等于0.56乘33加0.56乘77减0.56再问：得数是多少再答：61.04

5.6*69.32+138.64*0.05+693.2*0.43=5.6*69.32+69.32*0.1+69.32*4.3=69.32*(5.6+0.1+4.3)=69.32*10=693.2

28×221.6﹣28×16=28×﹙221.6-16﹚=28×205.6=5756.85.6×1.7﹢0.5×83=0.5×11.2×1.7+0.5×83=0.5×﹙19.04﹢83﹚=0.5×10

54073等于5乘(10000)加4乘(1000)加7乘(10)加3乘(1)

46.1×0.56＋5.38×5.6＋1×0.056＝46.1×0.56＋53.8×0.56＋0.1×0.56＝0.56×（46.1＋53.8＋0.1）＝0.56×100＝56