13.6×108-136×7.2+36×86.4简便运算
问题描述:
13.6×108-136×7.2+36×86.4简便运算
答
13.6×108-136×7.2+36×86.4
=136*10.8-136*7.2+36*86.4
=136*(10.8-7.2)+36*86.4
=136*3.6+36*86.4
=13.6*36+36*86.4
=36*(13.6+86.4)
=36*100
=3600989898乘999999除(10101的平方)