This addition exercise will help students add it all up when calculating the perimeter of an object.

Adding up missing factors will be a routine matter for students after they complete this exercise.

Use this exercise to share with students several facts about one digit divisors into numbers up to 100.

Memorizing these one digit divisor facts about 7s and 8s will speed up students’ work on math problems.

Give your students the foot up they need in geometry with these exercises that have your third graders work forwards and backwards through area problems.