125×456÷7.89÷4.56×78.9÷1.25用简便计算,还有7.48×369369-3.69×748748_数学解答

125×456÷7.89÷4.56×78.9÷1.25
用简便计算,还有7.48×369369-3.69×748748

人气：492 ℃　时间：2020-01-25 19:55:45

解答

125×456÷7.89÷4.56×78.9÷1.25
=125÷1.25×456÷4.56×78.9÷7.89
=100×100×10
=100000
7.48×369369-3.69×748748
=7.48×369×1001-369÷100×7.48×1001×100
=0