直接写得数．
50×30= 480÷8= 200×4= 1.7+6.2= 400÷5=
90×20= 800÷4= 22×40= 6.7﹣2.4= 270÷9=
14×4= 560﹣300= 0÷76= 0.2+0.8= 1﹣0.6=
相关试题
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×
= 
÷
= 
×
=
+3= 
×
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﹣
=
×
= 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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