脱式计算。（1）5.4×5.08+3.6×5.08+5.08（2）0.25×588.5×400（3）[9-（4.68+1.42）-1.9]÷0.125（4）[（6.1-4.6）×0.8-1]×0.4（
（1）5.4×5.08+3.6×5.08+5.08 =（5.4+3.6+1）×5.08 =10×5.08 =50.8
（4）[（6.1 - 4.6）× 0.8-1] ×0.4 =[1.5×0.8-1]×0.4 =[1.2-1]×0.4 =0.08
（6） =3+4.58+2.42 =3+7 =10
题目简介
脱式计算。（1）5.4×5.08+3.6×5.08+5.08（2）0.25×588.5×400（3）[9-（4.68+1.42）-1.9]÷0.125（4）[（6.1-4.6）×0.8-1]×0.4（
题目详情
答案
（1）5.4×5.08+3.6×5.08+5.08
=（5.4+3.6+1）×5.08
=10×5.08
=50.8
=0.25×400×588.5
=100×588.5
=58850
=[9-6.1-1.9]÷0.125
=1÷0.125
=8
（4）[（6.1 - 4.6）× 0.8-1] ×0.4
=[1.5×0.8-1]×0.4
=[1.2-1]×0.4
=0.08
=4.125+0+4.125
=8.25
（6）![]()
=3+4.58+2.42
=3+7
=10