问题 计算题 脱式计算。(1)(140÷2)×9(2)(384+216)÷6(3)(237-109)÷8 答案 (1)(140÷2)×9 =70×9 =630(2)(384+216)÷6 =600÷6 =100(3)(237-109)÷8 =128÷8 =16