(北师大版)二年级数学下册 买鲜花
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一、用脱式计算 ??? (1) (37–28)×4???????? (2) 8×6–30???????? ? (3) 42–30÷6 ????? =??????????????????? =????????????????? = ????? =???????????????????? =????????????????? = ??? (4) 19+6×5???????????? (5) 35÷(28–21)????? (6) 5×(28÷4) ????? =??????????????????? =????????????????? = ????? =??????????????????? =????????????????? = 二、列式计算(文字题只能写综合式,然后脱式计算..