Use these vocabulary cards with the EL Support Lesson Plan: Fact Family Triangles.

Students will love getting to make and cut out their own fact family triangles as they practice writing three related numbers.

Have your child work backwards to solve addition problems and learn more about the additive inverse.

Kids will learn more about inverse operations by reviewing their subtraction problems. Use addition, the inverse of subtraction, to review problems.

Math whizzes can learn to estimate sums quickly using front-end estimation! Round to the highest place value and then add or subtract the rounded numbers.

Students learn to decompose numbers through this fun activity. After being given a number, young mathematicians come up with their own way to decompose the number into two different numbers.

Assess your ability to add and subtract tens with this second-grade math worksheet!