直接写出得数+= ﹣= += 1﹣= += =+= ﹣= 3﹣= += 3÷7= 43=
直接写得数： 1÷=+0.5=÷8=（+）×36=×= 5﹣=÷80%= 4﹣1﹣0.4=
直接写出得数．=== 5.6÷4= 3.4﹣8====
直接写出得数=== 3×===== 8×==
直接写出得数．=====×+=﹣=+=
直接写数对又快： 1÷=+=÷=（﹣）×18=÷3=×=﹣=×÷×=
+
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