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题型:填空题 题类:常考题 难易度:普通
一、分数加减法 第五课时练习一①
+ = + = - = + =
+ = - = - = - =
+ = + = - = + =
A 0.71
B
C 71.8%
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360÷20=
12÷0.5=
45×20=
3.8÷100=
0.12×1000=
+=
-=
×=
1÷=
1-+=
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