3.6÷1.5÷1.3÷1.8×7.5×9.1巧算
问题描述：
3.6÷1.5÷1.3÷1.8×7.5×9.1
巧算
答
(9.1/1.3）*(3.6/1.8）*(7.5/1.5)
=7*2*5
=70
答
3.6÷1.5÷1.3÷1.8×7.5×9.1
=3.6÷1.8×7.5÷1.5×9.1 ÷1.3
=2×5×7
=70
答
(3.6÷1.8)×(7.5÷1.5)×(9.1÷1.7)=2×5×7=70
答
3.6÷1.5÷1.3÷1.8×7.5×9.1
=(3.6/1.8)*(7.5/1.5)*(9.1/1.3)=2*5*7=70
答
36÷15÷13÷18×75×91
=（36÷18）×（75÷15）×（91÷13）
=2×5×7
=70
答
3.6÷1.5÷1.3÷1.8×7.5×9.1
=3.6÷1.8×7.5÷1.5×9.1 ÷1.3
=2×5×7
=70
答
3.6÷1.5÷1.3÷1.8×7.5×9.1
=（3.6÷1.8）×（7.5÷1.5）×（9.1 ÷1.3 )
=2×5×7
=70
答
9.1/1.3=7;7.5/1.5=5;3.6/1.8=2
所以:原式=7*5*2=70