直接写出得数．75+25= 60×6= += 80﹣29=1﹣= 31×30= 16×5= 84÷4=+= ﹣= 69÷3= 48÷3=
= × ==．
口算显身手．×2=×== 12﹣=×= 1×=×0= 3×=×=
口算题．×12=×= 60×=×=
阴影部分是 平方米． 如图求的是 的 是多少？列式计算 ．
计算下面各题：．
+
= 31×30= 16×5= 84÷4=
+
= 
﹣
= 69÷3= 48÷3=
= × =
=
．
×2=
×
=
=
=
×
= 1×
=
×0= 3×
=
×
=
×12=
×
=
=
×
=
．
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