六道计算题
73.8-1.6+13.8-5.36
4.8乘以7.8+7.8乘以0.32
70.9乘以1.08-0.8乘以7.09
7.85+2.34-0.55+4.66
0.89乘以100.1
8.7乘以0.9+0.87
73.8-1.6+13.8-5.36
=72.2+13.8-5.36
=86-5.36
=80.64
4.8乘以7.8+7.8乘以0.32
=7.8*(4.8+0.32)
=7.8*5.12
=39.936
70.9乘以1.08-0.8乘以7.09
=7.09*10.8-0.8*7.09
=7.09*(10.8-0.8)
=7.09*10
=70.9
7.85+2.34-0.55+4.66
=(7.85-0.55)+(2.34+4.66)
=7.3+7
=14.3
0.89乘以100.1
=0.89*(100+0.1)
=0.89*100+0.89*0.1
=89+0.089
=89.089
8.7乘以0.9+0.87
=8.7*0.9+8.7*0.1
=8.7*(0.9+0.1)
=8.7*1
=8.7
下一篇:六道递等式计算题
热门标签: