第 1 页
小数加减法的训练:(B)
(竖式计算)
+= += -= -= +=
-= += -= -= -=
+= -= -= += +=
-= += -= += -=
+= += += -= +=
-= += += -= +=
-= += -= += -=
-= -= += -= +=
+= -= -= -= -=
-= -= += -= -=
-= -= += += +=
-= += += += +=
+ = += -= -= -=
-= -= -= -= -=
第 2 页
-= -= -= -= -=
-= += -= -=
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