15×3015×2 16×313×6
6×9+56×(9-5) (52-28)÷452-28÷4
800÷4=
700×2=
99÷9=
4×60=
320+680=
45÷9=
96÷3=
42÷2=
85-51=
780-380=
456-78+324= 468-(168+172)= 1000-376-155=
38+8×9= (28+72)÷2=
420÷6-25= 900-(125+265)=