直接写得数．
300×4= 6×500= 720÷9= 400÷4=
500×3= 240÷6= 60×30= 0÷1=
560÷7= 80×4= 200÷5= 9×400=
20×0+30= 20×3×5= （5+25）×4= 35﹣6×4=
相关试题
= 
×
= 
÷
= 
×
=
+3= 
×
= 
﹣
=
×
= 134﹣18= 1.5×4= 7.45+8.55=
= 2.4﹣
= 3.5×
= 
×
=直接写得数．
3.14×22= 4÷6= 100×0.1%= 0.36+0.4=
3.75﹣1.25+0.25= 1.6×1.25= 734﹣198= 637÷8≈
= 10
×2= 1﹣4÷7=
= 5.2×6= 3.85×0+2.4= 21
÷7=
倍是1，这个数是多少？
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