计算:(每题3分,共18分)
(1)-20+(-14)-(-18)-13
(2)-(-28)÷(―6+4)+(―1)× ︳-5 ︳
(3)
(4)
(5)5m-7n-8p+5n-9m-p
(6)
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计算:(每题3分,共18分)
(1)-20+(-14)-(-18)-13
(2)-(-28)÷(―6+4)+(―1)× ︳-5 ︳
(3)
(4)
(5)5m-7n-8p+5n-9m-p
(6)
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