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(3.5 +1.95)×(9.1-0.9)怎么算?(23.5-0.9-3.5-9.1的简便计算)

(3.5 +1.95)×(9.1-0.9)怎么算?(23.5-0.9-3.5-9.1的简便计算)

23.5-0.9-3.5-9.1的简便计算

=(23.5-3.5)-(9.1+0.9)

=23-10

=13

3.5x17十0.9用简便运算怎么算?

3.5x17十0.9用简便运算怎么算?

3.5x17十0.9

=59.5+0.9

=60.4

直接计算

3.5:0.9怎么算

=(3.5x10):(0.9X10)

=35:9

3.5减3.5乘0.9 用简便方法计算

3.5-3.5*0.9

=3.5*1-3.5*0.9

=3.5*(1-0.9)

=3.5*0.1

=0.35