直接写得数．62×3= 0×65+5= 77×20= 40×50=200+20÷4= 98+12= 42×1×5= 12×25=9×5÷5×9= 40+20÷（2÷2）=
×= 0×=÷====
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直接写出得数×3=×16=×=（+）×4=×+×=+=÷3= 4÷=
×1= 52﹣42= 0.75﹣0.5=×=÷= 125×0.08= 0.5+0.02=÷=÷= 0.15×6= 12÷0.3= 0÷=
直接写得数．×16= 12÷= 24×=×÷= 1÷=÷15=÷=×÷×=
×
= 0×
=
÷
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
×3=
×16=
×
=（
+
）×4=
×
+
×
=
+
=
÷3= 4÷
=
×1= 52﹣42= 0.75﹣0.5=
=
÷
= 125×0.08=
÷
= 0.15×6= 12÷0.3= 0÷
=
×16= 12÷
= 24×
=
×
÷
=
÷15=
÷
=
×
÷
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