口算15÷5= 36÷4= 35÷7= 14÷2= 4×7= 28+25=24÷4= 18÷9= 9×5= 25÷4= 22÷7= 65÷7=
直接写得数. 7.2÷9=﹣=+=﹣+= 5﹣=﹣×0=
= ．
直接写得数．========
﹣．
+=+=﹣=+=++=+﹣=﹣﹣=﹣+=
﹣
=
+
=
﹣
+
= 5﹣
=
﹣
= ．
=
=
=
=
=
=
=
=
﹣
．
+
=
+
=
﹣
=
+
=
+
+
=
+
﹣
﹣
﹣
=
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=
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