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
3.6÷1.5÷1.3÷1.8×7.5×9.1巧算
(3.6×7.5×1.2)÷(1.5×2.4×0.18)这题简算的过程
3.6÷1.5÷2简算,
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帮忙出370条五年级加减乘除小数口算题有些我有了7.2÷2.4= 0.0÷3.1= 6.4÷3.2= 2.9÷1.9= 3.6÷0.9= 0.2÷0.1= 13.1÷3.2= 0.4÷0.6= 12.4÷3.1= 3.4÷1.0= 8.9÷2.7= 4.9÷1.3= 5.0÷2.8= 8.0÷3.2= 1.5÷1.5= 6.2÷1.4= 4.0÷3.3= 11.8÷2.8= 4
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下面各题,怎样简便就怎样计算.(递等式)①18.9-18.9÷1.4+1.1 ②0.25×(4.8-7.5÷3)③2.3×1.5+4.5÷0.75 ④144÷0.6-4.2×3⑤18.5-(5.6+4.8)÷1.3 ⑥2.2×0.25+2.8×0.25⑦1.4×[(7.5+38.4)÷0.9] ⑧(2.5-2.5×0.6)÷0.4
3.6÷(1.3+0.5)×5怎样简算