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Number game

Sum Tower

Each box holds the sum of the two boxes under it. Add the lit pair, find the sum on the pad, and build the tower one floor at a time.

  • Ages 6–8
  • Addition
  • Adding two numbers
  • Mental sums

Build the tower, floor by floor

Round 1Sums 0/3

Find the sum of the two lit boxes and tap that number on the pad.

2 + 1

The lit boxes hold 2 and 1. What goes in the box above?

212???

    How to play

    1. Look. Look at the numbers in the two lit boxes.
    2. Add. Add the two numbers out loud.
    3. Tap. Find the sum on the number pad and tap it. The tower rises one floor.