234*12.1+235*42.2-135*54.3235*12.1+235*42.2-135*54.3

来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/26 06:04:04
234*12.1+235*42.2-135*54.3235*12.1+235*42.2-135*54.3234*12.1+235*42.2-135*54.3235*12.1+235*42.2-135*

234*12.1+235*42.2-135*54.3235*12.1+235*42.2-135*54.3
234*12.1+235*42.2-135*54.3
235*12.1+235*42.2-135*54.3

234*12.1+235*42.2-135*54.3235*12.1+235*42.2-135*54.3
234*12.1+235*42.2-135*54.3
=(235-1)*12.1+235*42.2-135*54.3
=235*12.1-12.1+235*42.2-135*54.3
=(235*12.1+235*42.2)-135*54.3-12.1
=235*(12.1+42.2)-135*54.3-12.1
=235*54.3-135*54.3-12.1
=(235-135)*54.3-12.1
=100**54.3-12.1
=5430-12.1
=5417.9
235*12.1+235*42.2-135*54.3
=235*(12.1+42.2)-135*54.3
=54.3*(235-135)
=5430
我是最先作答的哦,不明白欢迎追问.

234×12.1+235×42.2-135×54.3
=2831.4+9917+7330.5
=20078.9