Question

用你喜欢的方法计算下题

用你喜欢的方法计算下题
1.73x12.5%除以1/8+2
2.17x31%+17x69%
3.3/4x1/8+5.875x75%+0.75
4.1/4x36除以45%

Answer 1

1.73x12.5%除以1/8+2
=73+2
=75

2.17x31%+17x69%
=17x(31%+69%)
=17

3.3/4x1/8+5.875x75%+0.75
=3/4x1/8+5.875x3/4+3/4
=(3/4)x(1/8+5.875+1)
=(3/4)x7
=21/4
4.1/4x36除以45%
=9/0.45=20

Answer 2

1、73x12.5%÷1/8+2
=73×（0.125×8）+2
=73×1+2
=75
2、17x31%+17x69%
=17×（31%+69%）
=17×1
=17
3、3/4x1/8+5.875x75%+0.75
=0.75+0.125+5.875×0.75+0.75
=7.875×0.75+0.125
=5.90625+0.125
=6.03125
4、1/4x36÷45%
=0.25x36÷0.45
=9÷0.45
=20

Answer 3

用你喜欢的方法计算下题
1.73x12.5%除以1/8+2
=73×（12.5%×8）+2
=73+2
=75
2.17x31%+17x69%
=17×（31%+69%）
=17×1
=17
3.3/4x1/8+5.875x75%+0.75
=3/4×（1/8+5.875+1）
=3/4×7
=21/4
=5.25
4.1/4x36除以45%
=9÷0.45
=20