25×2= 180×4= 140×6= 36×20= 14×6=
19×5= 230×3= 20×70= 200×17= 220×4=
864÷48=
950÷19=
★608÷79=
18×50=
630÷90=
612÷6=
124-24÷6=
33×700=
302×40=
240÷20=
12×4÷12×4=
0.8×25=
0×4.23=
0.57+0.43=
0.02×500=
12.5×8 =
50×0.04 =
80×0.3 =
1.1×9=
0.43×2=
2.5×0.4=
2.8×0.25×4=
4.3×0.8+5.7×0.8=
25×9= 318÷6= 24+64÷8=
44×25= 100-56+42= 24×8+24×2=
24×(18-13)= 56÷14+42= 8×13×25=
( )×4=200 840÷( )=8 ( )÷7=14……2
-= += -+=
90÷30=
88÷8=
320÷8=
120÷40=
600÷20=
70÷5=
480÷24=
250÷50=
420÷3÷4420÷(3×4)
(20×4)÷(20×4)20×4÷20×4
(2500÷50-45)×52500÷[(50-45)×5]
205+97= 3.01﹣0.1= 0.25×3×4= 36×25%=
3×a×a= ×1.6= 4÷25%= 16.4+3.06=
1﹣ ÷ = ( ﹣ )÷ =