18×20 = (50+25)×2= 39÷6 = 140×20=
22÷3= 0×99+ 1= 1000- 1= 500+800=
105×9= 60×70 = 245- 155= 13× 1 1=
5 10-203= 804×4= 390÷3= 2500÷5=
47+253= 10 1+89= 50-0÷25= 6 1÷7=
72 1÷7= 800-425= 234×2= 8 100÷9=
228+45 = 148÷2 = 24+ 180 = 5 1× 10 =
99+0= 100-0×0= 60-50×0= 0×(0÷27)=
4÷3 = 6÷ 1× 100= 4×25= 8× 125=