题目内容

脱式计算。
(1)218+324÷18×5 (2)(488+32×5)÷12
(3)4500÷(150-40×3) (4)480÷(144-960÷8)
(5)200-(76+40×3) (6)69×(800-700)÷5
(1)原式=218+18×5
                =218+90
                =308
(2)原式=(488+160)÷12
                =648÷12
                =54
(3)原式= 4500÷(150-120)
                = 4500÷30
                =150
(4)原式= 480÷(144-120)
                = 480÷24
                =20
(5)原式=200-(76+120)
                =200-196
                = 4
(6)原式=69×100÷5
                =6900÷5
                =1380
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