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7.2÷0.25÷0.4脱式计算,能简算的要简算

7.2/0.25/0.4 =7.2/(0.25x0.4) =7.2/0.1 =72 如有帮助请采纳, 如对本题有疑问可追问,Good luck!

2.8×4+7.2÷0.25 =2.8×4+7.2×4 =(2.8+7.2)×4 =10×4 =40

=4.1÷(0.25×0.4) =4.1÷0.1 =41 望采纳,点击采纳

0.25x0.7÷0.25×0.7 =(0.25÷0.25)x(0.7x0.7) =1x0.49 =0.49

(1)0.25×[(2.8+4.4)÷1.2],=0.25×[7.2÷1.2],=0.25×6,=1.5;(2)3.7×9.16+6.3×9.16,=(3.7+6.3)×9.16,=10×9.16,=91.6;(3)[32-(1.95-1.95)]÷1.6,=[32-0]÷1.6,=32÷1.6,=20;(4)5.7×10.1,=5.7×(10+0.1),=5.7×10+5.7×0.1,...

原式=0.175×4÷1/4 =0.7×4 =2.8

0.175÷0.25×0.4 =0.7x0.4 =0.28

(1)4.57+3.34÷0.2=4.57+16.7,=21.27;(2)1.68÷0.25÷0.4=1.68÷(0.25×0.4),=1.68÷0.1,=16.8;(3)2.5×0.7+7.5×0.7=(2.5+7.5)×0.7,=10×0.7,=7;(4)0.125×0.32×0.25=(0.125×0.8)×(0.4×0.25)=0.1×0.1,=0.01.

脱式计算能简算的要简算 0.25x32x12.5 =(0.25×4)×(8×12.5) =1×100 =100 2/5x68+0.4x32 =0.4×(68+32) =0.4×100 =40 14/5÷(14/5+7/10) =14/5÷7/2 =4/5 (2/3+4/15x5/6)÷10/21 =(2/3+2/9)÷10/21 =8/9÷10/21 =28/15 1-5/8÷25/28-3/10 =1-...

0.175÷0.25÷0.4 =0.175÷(0.25x0.4) =0.175÷(0.1) =1.75

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