17.15-(3.5-2.85)简便运算
来源:学生作业帮助网 编辑:作业帮 时间:2024/11/03 05:26:44
x)3434}XTHb$V_`gCY` [6HH(32@
̀,<;6`@
D
b
17.15-(3.5-2.85)简便运算
17.15-(3.5-2.85)简便运算
17.15-(3.5-2.85)简便运算
17.15-(3.5-2.85)
=17.15+2.85-3.5
=20-3.5
=16.5
17.15-(3.5-2.85)
=17.15 + 2.85 -3.5
=20-3.5
=16.5