About this game

Column calculation

Column calculation: a free Grade 2 math game for ages 7-8. Each round draws 8 questions; instructions are read aloud and every answer is checked and explained.

Aligned with

  • 2.OA.B.2 Fluently add and subtract within 20 using mental strategies. By end of Grade 2, know from memory all sums of two one-digit numbers.
  • 2.OA.A.1 Use addition and subtraction within 100 to solve one- and two-step word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem.

▲ Back to the game