题目内容

计算,
(1)5×3+12= (2)36+22-45=
(3)72-(23+15)= (4)3×6 - 4=
(5)18 - 2×6= (6)62 - 33 - 14=
(7)19+33+14= (8)80 - 5×9=
(1)原式=15+12
                =27
(2)原式=58-45
                =13
(3)原式=72-38
                =34
(4)原式=18-4
                =14
(5)原式=18-12
                =6
(6)原式=29-14
                =15
(7)原式=52+14
                =66
(8)原式=80-45
                =35
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