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题型:填空题 题类:常考题 难易度:普通
混合运算(乘加、乘减、除加、除减两步计算式题) 2887 10
①50–30÷5 ②9×2÷3 ③40–6+14
=20÷5 =18÷3 =40–20
=4 =6 =20
方法一:
方法二:
74+9= 65-24= 3×5= 43-(3+20)=
47-8= 33+15= 5×5= 89-(34-14)=
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