About Plus or Minus?
Each sum has a blank where the sign should be, like 9 ? 2 = 11. Your child checks which sign makes it true and taps it. Only one sign ever fits, so trying each one in their head is part of the fun.
How to play
- Read the numbers on both sides of the empty box.
- Tap the sign that makes the sum true.
- With a keyboard, press 1 for plus, 2 for minus, and so on.
What your child practices
- Plus and minus
- Times and divide
- Checking if a sum is true
- Number sense
How it grows with your child
YoungAges 6-8
Plus or minus, with numbers up to 20.
Big KidsAges 8-11
Four signs: plus, minus, times and divide, with times tables up to 9.
Play together
Write a few sums on paper with the sign left out and let your child fill in plus or minus.
