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(8+0.4)×0.25脱式计算

(8+0.4)×0.25 =8×0.25+0.4×0.25 =2+0.1 =2.1

12.5x0.4x0.25x0.8用脱式计算 =(12.5x0.8)x(0.4x0.25) =10x0.1 =1

0.25×0.88×4 =(0.25x4)x0.88 =1x0.88 =0.88 应用乘法交换律、结合律。 希望能帮到你!

(1)0.125×0.25×8×4=(0.25×4)×(0.125×8)=1×1=1;(2)54×(56-29 )=54×56-54×29=45-12=33;(3)35×13+35÷113=35×13+35×13=35×(13+13)=35×26=785;(4)8.05-0.75-14=8.05-0.75-0.25=8.05-(0.75+0.25)=8.05-1=7.05.

等等

解: 7.8÷0.8*2.5 =7又4/5÷4/5 *5/2 =39/5*5/4*5/2 =39/4*5/2 =195/8

0.25乘32乘1.7乘12.5的简便计算脱式,谁能帮帮我啊!谢谢各位了!O(∩_∩)O~

(1)1.08×0.8÷0.27=1.08÷0.27×0.8,=4×0.8,=3.2;(2)102×0.45=(100+2)×0.45,=100×0.45+2×0.45,=45+0.9,=45.9;(3)22.78÷1.25÷0.8=22.78÷(1.25×0.8),=22.78÷1,=22.78;(4)0.34×101-0.34=(101-1)×0.34,=100×0.34,=34.

0.4×125×25×0.8 =(0.4×25)×(125×0.8) =10×100=1000 1.25×(8+10) =1.25×8+1.25×10 =10+12.5=22.5 9123-(123+8.8) =9123-123-8.8 =9000-8.8 =8991.2 1.24×8.3+8.3×1.76 =8.3×(1.24+1.76) =8.3×3=24.9 9999×1001 =9999×(1000+1) =9999×...

75×4.68+468×0.35-46.8 =75×4.68+4.68×35-4.68×10 =4.68×(75+35-10) =4.68×100 =468

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