口算．36÷12= 26÷13= 33÷3= 360÷12= 260÷13=330÷30= 48÷4= 480÷40= 0÷27=
直接写出得数==== 8.8×1.25====
直接写出得数： 142﹣69= 4﹣3= 3﹣﹣= （+）×16=
直接写出得数．= 50÷50%= 0.25×0×4=== 9.7﹣6.8= 100×0.22====
直接写出结果．==========
直接写出得数 777×9+111×37= 0.3÷5=﹣= 42×（+）=×÷×=××7×4= 2.5×9.9×40= 1÷÷= 999+99+9+= 17.9﹣（2.5+7.9）=
=
=
=
=
=
=
=
﹣3
=
﹣
﹣
=
+
）×16=
= 50÷50%=
=
=
= 9.7﹣6.8=
=
=
=
=
=
=
=
=
=
=
=
=
=
﹣
= 42×（
+
）=
×
÷
×
×7×4= 2.5×9.9×40= 1÷
÷
+99
+
= 17.9﹣（2.5+7.9）=
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