1.05乘59+1.05乘43-2.1简便计算简便简便!_数学解答

1.05乘59+1.05乘43-2.1简便计算
简便简便!

人气：451 ℃　时间：2020-07-14 18:14:35

解答

1.05乘59+1.05乘43-2.1
=1.05*（59+43）-2.1
=1.05*102-2.1
=（1+0.05）*102-2.1
=1*102+0.05*102-2.1
=102+5.1-2.1
=102+（5.1-2.1）
=102+3
=105