直接写出得数．
×16= 12÷
= 0.3×
=÷
= 1÷
= 0×
+
=
×
=
÷= 0.75÷
= 1﹣
= 1÷0.01= 10﹣0.01=
直接写出得数
= 6÷
=
= 10÷
=
3.14×16= 7×
=
×99=
=
口算
57÷
×25= 15÷15%=
×
÷
×= 0.36+0.64=
3.28+6.62= 1.25×1.5×8= 0.22=（
+
）×12=
9﹣0.9=
直接写出得数．
÷
= 2×
=
×15=
÷
= 16×
=
21÷
= 9÷﹣9÷
=（
+
）×6=
÷16=
×7﹣×4=
+
= ； 0.6×1.5= ； 24÷
= ； 508﹣198= ；
2.2+1.08= ； 0.875×24= ； 10÷0.1= ； 696+203= ；
+
÷= ； 1÷
×
= ．
+
= 
+
=
= 25×4×7= 658+125+75= 40×18×5=