ldcf.net
当前位置:首页 >> (8+0.4)×0.25脱式计算 >>

(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

(1)0.8×0.25×4×0.5=(0.8×0.5)×(4×0.25)=0.4×1=0.4;(2)4.6×[3÷(1.45-1.05)]=4.6×[3÷0.4]=4.6×7.5=34.5;(3)55×9.9=55×(10-0.1)=55×10-55×0.1=550-5.5=544.5;(4)4.87×2.34+4.87×7.66=4.87×(2.34+7.66)=4.87×10=48.7.

=0.4x2.5x(0.8x0.25)

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!

4÷0.8-0.8÷4 =5-0.2 =4.8

(1)2.08×3.4-7.06=7.072-7.06=0.012(2)4.3×0.25×0.4=4.3×(0.25×0.4)=4.3×0.1=0.43(3)104×0.25=100×0.25+4×0.25=25+1=26(4)0.78×0.17-0.12×0.78=0.78×(0.17-0.12)=0.78×0.05=0.039(5)4.2×7.8+2.2×4.2=4.2×(7.8+2.2)=4.2×10=42(6...

5÷8÷0.4×(3÷5)=5÷(8÷0.4)×0.6=5÷20×0.6=0.25×0.6=0.15

(1)2.6×1.9÷2.6×1.9=(2.6÷2.6)×(1.9×1.9)=1×3.61=3.61(2)4.264÷(0.16×20.5)=4.264÷3.28=1.3(3)12×2.5+0.8×2.5=3×(4×2.5)+0.8×2.5=3×10+0.8×2.5=30+2=32(4)3.75÷0.25÷0.4=3.75÷(0.25×0.4)=3.75÷0.1=37.5(5)30-[5.5+18÷(5.2+...

①2.07÷2.5÷0.4,=2.07÷(2.5×0.4),=2.07÷1,=2.07;②21.36÷0.8-12.9,=26.7-12.9,=13.8;③0.125×32×2.5,=0.125×8×4×2.5,=(0.125×8)×(4×2.5),=1×10,=10;④0.65×201,=0.65×(200+1),=0.65×200+0.65×1,=130+0.65,=130.65;⑤1.2×2....

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-...

网站首页 | 网站地图
All rights reserved Powered by www.ldcf.net
copyright ©right 2010-2021。
内容来自网络,如有侵犯请联系客服。zhit325@qq.com