519+171=
548-430=
940-456=
216+612=
783-460=
979-488=
160+248=
898-584=
680-502=
515+449=
830-54=
637-631=
118+377=
979-605=
911-75=
865+868=
897-727=
876-481=
6×8= 72÷9 = 24÷6 = 3×7 =
340+230= 360-250= 188+214≈ 796-412≈