28+9 =                    48+6 =

17-15 =                   88-35 =

6x12 =                     8x6 =

800+100 =               95-21=

28+9 =                    48-6 =

17-15 =                    88-30 =

6x12 =                      8x 7 =

800+100 =                250+25=

4x20 =                      95-21=