加減混合計算(列式遊戲)
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有芒果380個,上午賣出132個,下午賣出89個,還有芒果多少個?(利用圓括號列式)
380-(132+89)
一條圍巾原價568元的,現減了148元。李太太買了一條圍巾付了500元,應找回多少元?(利用圓括號列式)
500-(568-148)
花店今天賣出百合花231朵,比玫瑰花多賣出72朵,兩種花共賣出多少朵?(利用圓括號列式)
231+(231-72)
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