作业帮6.42*1.01-6.42
来源：学生作业帮助网 编辑：作业帮 时间：2024/07/09 03:46:41
交给我来!再答：要过程吗？再问：嗯再问：拜托再答： 再答：12.5÷(50÷8)你确定这道题括号里的符号没抄错？再问：没再答：哦哦
34.5乘76.5减345乘6.42减123乘10.45=34.5乘76.5减34.5乘64.2减123乘10.45=34.5×（76.5-64.2）-123×10.45=34.5×12.3-12.3
123×(6.42÷69.3)÷(3.21÷23.1)————去括号=123×6.42÷69.3÷3.21×23.1————变一变,就便便=123×(6.42÷3.21)÷(69.3÷23.1）=12
1880*199.9-1999*187.9=188*1999-1999*187.9=（188-187.9）*1999=0.1*1999=199.96.42*1.01/6.42=6.42/6.42*1.
34.5×76.5－345×6.42=34.5×76.5－34.5×64.2=34.5×12.334.5×12.3－123×1.45=34.5×12.3－12.3×14.5=12.3×20=246
3.85+6.42-1.78=3.85+6.15+0.27-1.78=10+0.27-2+0.22=8+0.49=8.49
1X（1+1）＝22X（2+1）＝66X（6+1）＝421806X（1806+1）＝3263442
这个数是23.58
13.7+6.42*0.75+4.58=23.095你的好评是我前进的动力!
34.5*76.5-123*1.45-345*6.42=345*7.65-123*1.45-345*6.42=345*（7.65-6.42）-123*1.45=345*1.23-123*1.45=3.
34.5*76.5-345*6.42-123*1.45=2639.25-2214.9-178.35=246
34.5×76.5-345×6.42-123×1.45=34.5×(76.5-64.2)-123×1.45=34.5×12.3-123×1.45=12.3×(34.5-14.5)=12.3×20=24
3263442是1806*1807前面的都是这么算出来的
1、3.64÷4+4.36×25%2、3.6-2.8+7.4-7.23、6.42×1.01-6.42=3.64×1/4+4.36×1/4=（3.6+7.4）-（2.8+7.2)=6.42×1.01-6
6.42*1.01-6.42=6.42x(1.01-1)=6.42x0.01=0.0642
34.5*76.5-345*6.42-123*1.45=34.5*76.5-64.2*34.5-12.3*14.5=34.5*(76.5-64.2)-12.3*14.5=34.5*12.3-12.3*
6/7×13+6/7=6/7×（13+1）=6/7×14=126.42×1.01-6.42=6.42×（1.01-1）=6.42×0.01=0.064280.7×8.7＋8.07×13=8.07×87
6.42×1.01-6.42＝6.42x(1.01-1)=6.42x0.01=0.064280.7×8.7+8.07×13=8.07x87+8.07x13=8.07x(87+13)=8.07x100=
34.5乘76.5-345乘6.42-123乘1.45=34.5×76.5-34.5×64.2-123×1.45=34.5×(76.5-64.2)-123×1.45=34.5×12.3-123×1.4
先除再乘.等于1.01