The worksheet teaches your child how to count better and also shows them the life cycle of a frog. First, teach your little one that the picture shows the frog starting out an egg, then on to a tadpole, and finally maturing into a fully grown adult frog. Ask them if they can see the missing numbers in the picture. Then, ask them to check the missing numbers to count properly from 100 to 120. The correct answers are in the squares beneath the numbers. Help them check the correct ones.