题目内容

计算下面各题。(能简算的要简算)
(1)(+)×9×17 (2)(2+)×
(3)32× (4)(3+÷+3)-(7×÷7×
(5)(-×)÷ (6)÷[(-)×]
(1)原式=×9×17+×9×17
                =6+
                =
(2)原式=2×+×
                =+
                =
(3)原式=(33-1)×
                =13-
                =12
(4)原式=(3+1+3)-(÷7×
                =7-×
                =6
(5)原式=(-)÷
                =÷
                = 4
(6)原式=÷[×]
                =÷
                =2
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