280÷7=
60×60=
1000÷5=
15×60=
0×39=
43×30=
25×200=
440÷5=
245÷6≈
352÷7≈
41×49≈
48×92≈
320÷4= 15×30= 0÷8= 30×60=
25×20= 50×18= 0×120= 450÷9=
678÷2= 834÷3=
120×3= 505÷5= 88÷2= 365+330=
25×4= 0÷127= 1- = + =
20×50= 24×5= 10-0.9= 422÷6≈
9.7-4.5= 2.6+2.4= 0÷9= 41×79≈
400×2= 8000÷2= 180÷6 = 2800÷7 =
140×3= 310×30 = 50×20 = 99÷9 =
李老师购买的文具是,购买的数量是 。
101×25= ×0.5= ×= 5+= 2.5× =
3.2÷8= 1.25- = 5× ÷5÷ = 1.25× ×0.8=