5分之4乘4加5分之2乘4加5分之1乘16(简便计算)

2024-12-04 17:28:05
推荐回答(3个)
回答1:

4/5*4+2/5*4+1/5*16
=(4/5+2/5+1/5*4)*4
=(4/5+2/5+4/5)*4
=2*4
=8

回答2:

原题=4/5×4+2/5×4+1/5×16
=16/5+8/5+16/5
=40/5
=8

回答3:

五分之四十