The next document is an extension on number bonds to 20. There is a one star, two star and three star challenge. If you are very confident with your number bonds to 20, complete the three star challenge. If you think you need more practise, then complete the one star challenge. If you feel happy with your number bonds to 20, then complete the two star challenge. Remember you do not need to print the worksheets, you can write the answers in your homework book.