16÷4= 20÷5= 36÷4= 6×2= 5 +5 =
7×8= 27÷3= 35+55= 30÷5= 86-35=
48÷6= 54÷6= 7×3= 21+3= 5÷ 5=
64+9= 17-9= 83-73= 16÷2= 42÷6=
71-50= 4×5= 18÷3= 3÷3= 9÷1=
872÷9 6×840 20÷55
4× =28 ×6=42 25÷ =5
28÷ =7 27÷ =9 5× =20
×4 <30 7 ×< 64 2 ×< 21