3乘4乘5乘6简便运算
3乘4乘5乘6
=(3*4)*(5*6)
=12*30
=360
组合很多哈
3乘5乘9乘4简便运算
3*5*9*4
=3*9*(4*5)
=27*20
=540
4乘6乘24乘7
24乘24乘7
576乘7
4032
原式=(15*6)*(25*4)
=90*100
=9000
6.4x4.5+0.36x45
=6.4x4.5+3.6x4.5
=(6.4+3.6)x4.5
=10x4.5
=45
48乘2加5减1乘48
99*87.5+87.5=(99+1)*87.5=875
75*4.67+17.9*2.5=2.5*30*4.67+17.9*2.5=2.5*(30*4.67+17.9)=2.5*(140.1+17.9)=2.5*158=395
808*0.125=(800+8)*0.125=800*0.125+8*0.125=101
4×(6.3×2.5)
=(4×2.5)×6.3
=10×6.3
=63
36×8+36×6÷4×36
=36×8+9×6×36
=36×8+36×54
=36×62
=2232
36乘8加36乘6减4乘36
=36x8+36x6-4x36
=36x(8+6-4)
=36x10
=360