Juggling Numbers - Adding and Subtracting Tens

This activity is to help children practice their mental addition and subtraction of 10 to any 2-digit number; building up to adding/subtracting a multiple of 10 to a 2-digit number. Each child has a copy of the 'juggler' sheet and the handout which contains sums. They solve the sums and color in the correct answers appropriately.There are two handout; one more difficult than the other; but both produce the same colored results on the juggler.