About this game

Add 1 (from 1 to 9)

Add 1 (from 1 to 9): a free Kindergarten math game for ages 5-6. Each round draws 5 questions; instructions are read aloud and every answer is checked and explained.

How it plays and why it helps

Ask for one more banana at lunch, and a Kindergarten child usually knows how many that makes. Add 1 (from 1 to 9) checks whether that knowledge holds on screen. A picture shows a few cups, hamburgers, hams or bananas. Your child counts them, then taps the group that has one more, from two or three pictures. The instruction is read aloud, a round has five pictures, and each answer is checked and explained: there are two cups, and 2 and one more makes 3.

Adding 1 is the first fact a child can work out without counting everything. The hint shows how: count, say the number that comes just after, then look for that many. It ties addition to the counting sequence. That link lasts.

Some cards include a group with one fewer, and a hurried counter may grab it. The groups look alike at a glance. Ask, "Is that one more, or one less?" and let your child count both. Celebrate the counting: "You checked before you chose."

Aligned with

  • K.CC.A.3 Write numbers from 0 to 20. Represent a number of objects with a written numeral 0-20 (with 0 representing a count of no objects).
  • K.CC.A.1 Count to 100 by ones and by tens.
  • K.CC.B.4 Understand the relationship between numbers and quantities; connect counting to cardinality.

▲ Back to the game