原式=（28*0.5-1.63-3.37）/0.25
= （14-5）*4
=9*4
=36
[﹙8.79+19.21﹚×0.5﹣1.63﹣2.37]÷0.25
3个回答
相关问题
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5.79×0.8+0.8×5.21-0.8=?1/6÷【（5/6-1/8）×2/17=?
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口算我最棒!18×79= [3/4×59]= 3×15= [4/7÷37]= 0.6÷25= 21÷79= [4/5÷1
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简便计算：(1) 12.6÷5.6×0.8 (2) 4.5×78÷1.3 (3) 15.79÷4-3.79×0.25
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1.25×17.6+36.1÷0.8+2.63×12.5．
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1.25×17.6+36.1÷0.8+2.63×12.5．
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巧算 37×21+79×19+79×18
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简便计算18/17÷19+1/19×16/17和(2/3+4/15×5/2)÷20/21和0.25×1.25×48
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简便计算18/17÷19+1/19×16/17和(2/3+4/15×5/2)÷20/21和0.25×1.25×48
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0.8÷(5/4×1.25)÷(0.64-1/25)+1.2×0.5÷4/5
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直接写得数．12÷4= 0.9÷0.001= 12-7.2-2.8= 1.25×0.8×0.5= 2.56-1.37=