20÷3=
70÷9=
29÷4=
47÷5=
500+160=
630﹣530=
8×7=
42÷7=
50+340=
740﹣40=
4×9=
27÷9=
28÷4=
9×5=
63÷7=
48÷6=
64-8=
56÷8=
85+9=
45÷5=
32-7+43=
35÷7×8=
6+42÷7=
8×5-26=
= = = =
0.25= 0.76÷0.4= 1.6×12%= 1﹣4÷8=
3.14×11= 5.06+1.2= 0.9×99+0.9= =