题目内容
口算.4+
=______
×
=______ 4.5÷
=______
×2.4=______
÷7=______
-
=______
+
=______
×
=______.
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口算.4+
=4
×
=
4.5÷
=9
×2.4=1.4
÷7=
-
=
+
=
×
=
.
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