算一算,递等式计算。
(7.5+2.5)÷0.25 718-18x4
2÷8/5×25/24 2.25x1.8+1.25x0.18
5.4÷18+12 [1-(1/2+1/3)x36
(7.5+2.5)÷0.25
=10÷0.25
=40
718-18x4
=718-72
=646
2÷8/5×25/24
=2×5/8×25/24
=125/16
2.25x1.8+1.25x0.18(你确定你没有点错小数点?)
=4.05+0.225
=4.305
5.4÷18+12
=0.3+12
=12.3
[1-(1/2+1/3)x36
=[1-5/6]×36
=1/6×36
=6
热门标签: