直接写出得数．= = == = == = =
口算． 1÷0.5= 1﹣1÷1= 1.25××8=×5.6=÷5××5= 4×0×4= 120×（+）=+0.29+= 3﹣﹣=（﹣）×20=
直接写结果． 9×= 3﹣÷0.75=+1= 2÷= 0.9+99×0.9=×8÷×8= 1﹣﹣=﹣=××= 42÷[14﹣（50﹣39）]=
直接写出得数． 24.06+0.4= 180×40= 7﹣3.635= 50%÷2%=+=×12=÷= 3﹣=
直接写得数． 3﹣0.47=÷= 0.24×50= 2﹣2÷7= 8.4÷0.7= 0.32= 1.25×9×8= 80×25%=﹣=（+）×72=
直接写出得数． 1﹣0.27= 0.875÷5= 0.7+0.63= 99×66+66= 8﹣5= 2÷= 72×38≈ 908÷31≈ 8×98×125=
= 
= 
=
= 
= 
=
= 
= 
=
÷0.5= 1
﹣1
×8=
×5.6=
÷5×
×0×4
+
）=
+0.29+
=
﹣
﹣
=（
﹣
）×20=
= 3﹣
÷0.75=
+1= 2÷
=
×8÷
﹣
=
﹣
=
×
×
= 42÷[14﹣（50﹣39）]=
+
=
×12=
÷
= 3﹣
=
÷
= 0.24×50= 2﹣2÷7=
﹣
=（
+
）×72=
= 2÷
=
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