题目内容

脱式计算
97×23-350÷14
(564-18×24)÷12
783+21×15-369[504-(318-214)]÷25
(1)97×23-350÷14
=2231-25
=2206;

(2)(564-18×24)÷12
=(564-432)÷12
=132÷12
=11;

(3)783+21×15-369
=783+315-369
=1098-369
=729;

(4)[504-(318-214)]÷25
=[504-104]÷25
=400÷25
=16.
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