101x37的简便计算 8.7*101-8.7怎么简算

8.7*101-8.7怎么简算  

8.7*101-8.7怎么简算

8.7*101-8.7
=8.7*（101-1）
=8.7*100
=870

101乘8.7怎么简算?

101*8.7
=(100+1)*8.7
=870+8.7
=878.7

101*8.7+4.9怎样简算？

100*8.7+1+4.9

8.7+8.7×8.7+0.3×0.7用简算怎么算?

8.7+8.7×8.7+0.3×0.7用简算怎么算
解:
8.7+8.7×8.7+0.3×0.7
＝8.7×(1+8.7+0.3)
＝8.7×10
＝87

8.7÷2.5怎么简算？

=3.45

8.7+8.7x0.3怎样简算

8.7 + 8.7*0.3 = 8.7+2.4+0.21=11.31 怎样简算
=8.7 + 2.4 + 0.21
=11.1 + 0.21
=11.31

8.7x18.7-8.7x7.4-8.7的简算

怀疑题目抄错了，应该是8.7×18.7-8.7×7.7-8.7
=8.7(18.7-7.7-1)
=8.7×10
=87

15.6-8.7+34.2怎么简算

=15.6-8.7+34.2
=15.6+34.2-8.7
=49.8-8.7
=41.1

0.98*8.7 1.53*9.8怎么简算

0.98*8.7+1.53*9.8
=9.8*0.87+1.53*9.8
=（0.87+1.53）*9.8
=2.4*9.8
=2.4*10-2.4*0.2
=24-0.48
=23.52

8.7*1.2+0.87怎么简算

8.7×1.2+0.87
=0.87×12+0.87
=0.87×（12+1）
=0.87×13
=0.87×（10+3）
=0.87×10+0.87×3
=8.7+2.61
=11.31