Answer as many problems as you can in 60 seconds! Select a skill level and choose which times tables (0-12) to practice. Read the equations on the screen. Solve them as fast as you can! Vertical problem format, 2 skill levels, timed/untimed modes plus fun sound effects. Measures 4.5" in diameter. Requires 3 AAA batteries, not included. Age 7+/Grade 2+.