7.6乘5.3加3.7乘5.6-搜答案-拍题作业网

=7.6×0.58+7.6×0.42=7.6×(0.58+0.42)=7.6×1=7.6

3.7×67＋37×3.3=37×6.7＋37×3.3=37×(6.7+3.3)=37×10=370

3.38乘7.6加66.2乘0.76=0.76*（33.8+66.2）=0.76*100=76

3.14乘8.4加31.4乘3.7减0.314乘210=3.14×8.4+31.4×3.7-0.314×210=3.14×8.4+3.14×37-3.14×21=3.14×(8.4+37-21)=3.

七十七乘七十八分之七十七=（78-1）*77/78=78*77/78-77/78=77-77/78=76又1/781.2乘2.5乘3.5=(4*2.5)*(0.3*3.5)=10*1.05=10.5八

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

原试=3.7乘53加3.7乘48减3.7乘1=3.7*(53+48-1)=37再问：370吧再答：恩失误失误求采纳

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

4.56乘7.6加54.4乘0.76=4.56x7.6+5.44x7.6=(4.56+5.44)x7.6=10x7.6=76很高兴为您解答,【the1900】团队为您答题.请点击下面的【选为满意回答】

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

3又5分之3乘3.7加3.6加5.3乘3又5分之3等于多少=3又5分之3×3.7+3又5分之3+5.3乘3又5分之3=3又5分之3（3.7+1+5.3）=36

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

就等于7.3a+3.7b……

3.7x3.33+7.77x3.7+63x11.1=3.7x(3.33+7.77)+63x11.1=3.7x11.1+63x11.1=11.1x(3.7+63)=11.1x66.7=(10+1+0.1

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

7.6×7.3＋1.9×4×7.3＝7.6×7.3＋7.6×7.3＝2×7.6×7.3＝110.96

7.6×0.28+0.24×2.8=（7.6÷10）×（0.28×10）+0.24×2.8=0.76×2.8+0.24×2.8=（0.76+0.24）×2.8=1×0.28=0.28

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