神马作文网8.4×0.26+0.27 简便计算
来源：学生作业帮助网 编辑：作业帮 时间：2024/10/01 12:28:29
8.4×7.2+0.84×28=8.4×7.2+8.4×2.8=8.4×(7.2+2.8)=84再问：太对了，我咋没想到谢谢啦！
=(1-0.26)×3.75再答：=2.775再问：谢了。
4.5×12.6-0.26×45=4.5×12.6-2.6×4.5=4.5×(12.6-2.6)=4.5×10=45再问：0.26怎么变成2.6了？再答：0.26×45=0.26×10×4.5=2.6
0.027+99*0.27＝0.027+（100－1）*0.27＝0.027+27－0.27＝0.027+27－（0.3－0.03）＝（27－0.3）+（0.027+0.03）＝26.7+0.057＝
8.4*99+8.4=8.4(99+1)=840
=0.27*（1+99）=0.27*100=27希望我的回答能帮助你,在我回答的右上角点击【采纳答案】,
1.08×0.8除以0.27=0.27*4*0.8/0.27=0.27/0.27*4*0.8=1*3.2=3.2
25.4*8.4＝（25+0.4）x8.4=25x8.4+0.4x8.4=25x(8+0.4)+0.4x(8+0.4)=200+10+3.2+0.16=213.36
(0.26+1.04)×(4.8+1.3)=7.93
7.3×0.27+73×2.7=73×0.027+73×27=（0.027+2.7）×73=2.727×73=199.071
0.27*99+0.27=0.27*99+0.27*1=0.27*(99+1)=0.27*100=27
8.4*0.26+1.816=8.4×（0.25+0.01）+1.816=8.4×0.25+8.4×0.01+1.816=2.1×4×0.25+0.084+1.816=2.1×（4×0.25）+（0.
10+5.1-(3.98+0.26)=10+5.1-3.98-0.26=10+5.1-4+0.02-0.26=(10+4)+(5.1+0.02-0.26)=14+4.86=18.86再问：按照这个简便
0.27*99+0.27=0.27x(99+1)=0.27x100=27
41.6-13.68+8.4-5.32=（41.6+8.4)-（13.68+5.32）=50-19=31
3.9*0.309/0.26=39/26*3.09=3/2*3.09=4.635
0.27+9.9x0.27=0.27+(10-0.1)x0.27=0.27+10x0.27-0.27x0.1=0.27+2.7-0.027=2.943
原式=1/8X(8+0.27)-0.27X8/3=1/8X8+1/8X0.27-0.27X8/3=1+0.27X(1/8-8/3)=1+1809/2600=4409/2600
2.7×3.8-0.27×28=2.7x3.8-2.7x2.8=2.7x(3.8-2.8)=2.7x1=2.7
[-|98|+76+(-87)]*23[56+(-75)-(7)]-(8+4+3)5+21*8/2-6-5968/21-8-11*8+61-2/9-7/9-564.6-(-3/4+1.6-4-3/4)