2.4×0.19+0.24×8.1用简便运算
来源:学生作业帮助网 编辑:作业帮 时间:2024/11/11 07:29:38
0.24×6+2.4×0.4=2.4×0.6+2.4×0.4=2.4×(0.6+0.4)=2.4×1=2.4
1.41-0.24-0.19=0.98米
5/8÷20/21÷7/12=5/8×21/20×12/7=1/8×21/4×12/7=1/8×3/1×3/1=9/8
0.24×58加2.4×4.1加0.24=0.24×58+0.24×41+0.24=0.24×(58+41+1)=0.24×100=24
2.4/0.19+2.4/0.81
=0.24×10×0.19+0.24×8.1=0.24×1.9+0.24×8.1=0.24×(1.9+8.1)=0.24×10=2.4
没表示清楚
=13.7+2.4*0.137-2.4*0.137=13.7+(2.4*0.137-2.4*0.137)=13.7+(2.4-2.4)*0.137=13.7
∵某射手一次射击中,击中10环、9环、8环的概率分别是0.24,0.28,0.19,∴这射手在一次射击中不够9环的概率p=1-0.24-0.28=0.48.故选A.
依然范特西摩羯,2.4×0.19+0.24×8.1=0.24×1.9+0.24×8.1=0.24×(1.9+8.1)=0.24×10=2.4
(1)2.4×0.19+0.24×8.1,=2.4×0.19+2.4×0.81,=2.4×(0.19+0.81),=2.4×1,=2.4;(2)18.8×10.1-1.88,=1.88×101-1.8
0.24×58+2.4×4.1+0.24=0.24X(58+41+1)=0.24x100=24再问:3Q
0.19*2.6-0.16*1.9*7.3*2.4-14*0.73=-15.05210.19*2.6-0.16*1.9=0.197.3*2.4-14*0.73=7.3再问:抱歉,我好像打错了,原题是两
0.24*(0.19+8.1)
2.4*0.19+0.24*8.1=2.4*0.19+2.4*0.81=2.4*(0.19+0.81)=2.4*1=2.4
再问:对不起,我看不了图片,你可以打字告诉我吗再答:=3.25x2.4+6.75x2.4再答:=2.4x(3.25+6.75)再答:=2.4x10再答:=24再问:太谢谢了再问:
2.4*0.19+0.24*81=2.4*0.19+2.4*8.1=2.4*(0.19+0.81)=2.4
8分之5÷21分之20÷12分之7=5/8乘以21/20乘以12/7=21/32乘以12/7=9/80.24×58+2.4×4.1+0.24(6-8分之1×32)加四分之三=13.92+9.84+0.
0.24×1.9+2.4×0.81=2.4*0.19+2.4*0.81=2.4*(0.19+0.81)=2.4*1=2.4