5.6乘1.7加0.56乘83-搜答案-搜搜做题作业网

=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

3.6乘2.7加18乘0.56减1.8乘10%除10%=3.6*2.7+18*0.56-1.8=1.8*5.4+1.8*5.6-1.8=1.8*（5.4+5.6-1）=1.8*10=18

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

原式=1x2x3+2x3x4+3x4x5+...++7x8x9=6+24+60+120+210+336+504=1260

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*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

9.6x1.4+0.56=10x1.4-0.4x1.4+0.56=14-0.56+0.56=14在右上角点击【评价】,然后就可以选择【满意,问题已经完美解决】了.如还有新的问题,请不要追问的形式发送,

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

180

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

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

24*83+12*34=24*83+12*2*17=24（83+17）=24*100=2400

乘

解题思路：考查幂的运算解题过程：解：（1）第一次撕成2片，即21；第二次撕成4片，即22；....所以第n次撕成2n，则2n=64所以n=6所以要把这张纸撕成64片需要6次（2）撕7次后这张纸变成27

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