Complete the Sum

Find how many more are needed.

What will we learn?

Find how many more objects are needed to reach a target.

How many more make the totals equal?

Start with simpler choices or shorter sequences. A grown-up can show an example.

Try more varied choices or longer sequences when ready.

Choose by readiness. A grown-up can help, and your child can stop at any time.

No timer. Use touch, a mouse or your keyboard. A grown-up can help.