六年级关于百分数的解方程题十道

问题描述:

六年级关于百分数的解方程题十道

(1).(2-1.6×0.5+1.2)除以8%
=(2-0.8+1.2)除以8%
=(1.2+1.2)除以8%
=2.4除以8%
=30
(2).96%除以【3-(0.6+204×0.2)】
=96%除以【3-(0.6+0.48)】
=96%除以(3-1.08)
=0.96除以1.92
=0.5
(3)250%×15%×240%
=2.5×0.15×(0.4×6)
=2.5×0.15×0.4×6
=(2.5×0.4)×(0.15×6)
=1×0.9
=0.9
(4)12.5%×19+12.5%×1.3
=(1.25×1.9)+(1.25×1.3)
=1.25×(1.9+1.3)
=1.25×3.2
=1.25×8×0.4
=10×0.4
=4
(5)(2-1.6×0.5+1.2)除以8%
=(2-0.8+1.2)除以0.08
=(1.2+1.2)除以0.08
=30
(6)96%除以【3-(0.6+2.4×0.2)】
=0.96除以【3-(0.6+0.48)】
=0.96(3-1.08)
=0.96除以1.92
=0.5
(7) 60%+2.1除以12%
=0.6+17.5
=18.1
(8)5.6×16.5除以70%除以1.1
=5.6×16.5除以(0.7×1.1)
=5.6×16.5除以0.77
=94.2除以0.77
=120
(9)15%×1.25×6×80%
=(0.15×6)×(1.25×0.8)
=0.9×1
0.9
(10)6.78×999%+67.8%
=677.322+0.678
=678