Skip counting is a useful skill if you need to count sets of objects, such as pairs of shoes, gloves, the wheels on a tricycle, or even money. Counting on in twos, threes, fives and tens is easy, if ...

Skip counting is a useful skill if you need to count sets of objects, such as pairs of shoes, gloves, the wheels on a tricycle, or even money. Counting on in twos, threes, fives and tens is easy ...

An insomniac girl named Clarissa tries counting sheep to fall sleep, but it has the opposite effect: “A loud baa made her open her eyes, and to her surprise, she saw ten sheep in her room.” Counting ...