四年级小数加减法计算300题.pptx

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88－=
1－0．3=
2
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+=
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-11=
+=
+=
+=
+=
+=
+=
+=
+ =
+ = +=
+=
+14=
6+=
+=
+=
+=
+=
+ =
+=
- =
-=
-=
+=
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+=
-=
6+=
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-=
+=
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-=
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+= += -=
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+=
+=
3
+=
+=
+ =
+=
+ =
-=
-=
+= 42+=
+=
+=
+=
+ =
-=
+=
-=
+=
+=
+=
+1.