Question

题目;计算下面各题(能简算就简算)

Answer 1

18×0.25+0.25×60+42×0.25
=0.25×(18+60+42)
=0.25×120
=0.25×40×3
=10×3
=30

追答

105×13-1890÷18
=1365-105
=1260

128/9÷4-(3+5÷9)
=32/9-32/9
=0

追问

最后一次

追答

3/5÷(1/3+5/8×2/15)
=3/5÷(1/3+1/12)
=3/5÷5/12
=1.44

追问

求你了，最后一次了

追答

(2/3+7/9×9/28)÷11/12
=(2/3+1/4)÷11/12
=11/12 ÷11/12
=1

1.5×[0.02÷(2.1-2.09)]
=1.5×(0.02÷0.01)
=1.5×2
=3

1÷1/9-1/9÷1
=9-1/9
=80/9

1/4÷[3/4-(7/16-1/4)]
=1/4÷(3/4-3/16)
=1/4÷3/8
=2/3

追问

谢啦