脱式计算(能简便就简便)6.25÷1%-1.25×25×8 5/3×81+60%×19 4/3×4÷4×4/3 13/7+12.5%×13/6 5/4×3.5+5.5×80%+0.8(27+19/18)÷9 81/5×3.6÷1又6/1

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/10 18:14:34
脱式计算(能简便就简便)6.25÷1%-1.25×25×8 5/3×81+60%×19 4/3×4÷4×4/3 13/7+12.5%×13/6 5/4×3.5+5.5×80%+0.8(27+19/18)÷9 81/5×3.6÷1又6/1

脱式计算(能简便就简便)6.25÷1%-1.25×25×8 5/3×81+60%×19 4/3×4÷4×4/3 13/7+12.5%×13/6 5/4×3.5+5.5×80%+0.8(27+19/18)÷9 81/5×3.6÷1又6/1
脱式计算(能简便就简便)
6.25÷1%-1.25×25×8 5/3×81+60%×19 4/3×4÷4×4/3 13/7+12.5%×13/6 5/4×3.5+5.5×80%+0.8
(27+19/18)÷9 81/5×3.6÷1又6/1

脱式计算(能简便就简便)6.25÷1%-1.25×25×8 5/3×81+60%×19 4/3×4÷4×4/3 13/7+12.5%×13/6 5/4×3.5+5.5×80%+0.8(27+19/18)÷9 81/5×3.6÷1又6/1
6.25÷1%-1.25×25×8
=625-(1.25×8)×25
=625-10×25
=625-250
=375
3/5×81+60%×19
=0.6×(81+19)
=0.6×100
=60
4/3×4÷4×4/3
=4/3×4/3×(4÷4)
=4/3×4/3
=16/9
13/7×12.5%+12.5%×13/6
=(13/7+13/6)×12.5%
=1×12.5%
=0.125
5/4×3.5+5.5×80%+0.8
=0.8×(3.5+5.5+1)
=0.8×10
=8
(27+19/18)÷9
=27÷9+19/18÷9
=3+19/2
=3又19/2
81/5×3.6÷1又6/1
=9/2÷7/6
=9/2×6/7
=27/7