直接写出得数．
22+7= 30﹣20= 90+9= 60﹣30= 51+8=
7+83= 85﹣5= 98﹣70= 96﹣7= 65+5=
39+8= 4+65= 24+6= 45﹣30= 28﹣9=
16﹣5= 18+50﹣7= 80﹣60+35= 3+37﹣4= 81﹣5﹣20=
直接写出得数．
22+7= 30﹣20= 90+9= 60﹣30= 51+8=
7+83= 85﹣5= 98﹣70= 96﹣7= 65+5=
39+8= 4+65= 24+6= 45﹣30= 28﹣9=
16﹣5= 18+50﹣7= 80﹣60+35= 3+37﹣4= 81﹣5﹣20=
×
=
÷6=
÷7= 42×
= 6÷
=
×33=
÷
=
+
= 10÷1%=
﹣
= 24×50%=
= 15
=
=
=
=
=
=
=
=
=
=
×
= 1÷
= 4×60%= 0.875÷0.125=
=
×3.6= 0×
=
=
= 1÷40%=
=
= 72×25%=
=
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