3.6÷1.5÷1.3÷1.8×7.5×9.1巧算

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3.6÷1.5÷1.3÷1.8×7.5×9.1巧算
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3.6÷1.5÷1.3÷1.8×7.5×9.1巧算
3.6÷1.5÷1.3÷1.8×7.5×9.1
巧算

3.6÷1.5÷1.3÷1.8×7.5×9.1巧算
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

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

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

9.1/1.3=7;7.5/1.5=5;3.6/1.8=2
所以:原式=7*5*2=70

(3.6÷1.8)×(7.5÷1.5)×(9.1÷1.7)=2×5×7=70

36÷15÷13÷18×75×91
=(36÷18)×(75÷15)×(91÷13)
=2×5×7
=70

(9.1/1.3)*(3.6/1.8)*(7.5/1.5)
=7*2*5
=70

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