Subtraction
Free Math Worksheets: This site offers great subtraction worksheets for your child to practice their subtraction facts at home.
Flash Cards: Click on the subtraction tab to practice the subtraction flash cards.
Common Core Standards:
- Use place value understanding and properties of operations to perform multi-digit arithmetic.¹
- CCSS.Math.Content.3.NBT.A.2 Fluently add and subtract within 1000 using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction.
- Solve problems involving the four operations, and identify and explain patterns in arithmetic.
- CCSS.Math.Content.3.OA.D.8 Solve two-step word problems using the four operations. Represent these problems using equations with a letter standing for the unknown quantity. Assess the reasonableness of answers using mental computation and estimation strategies including rounding.3
- CCSS.Math.Content.3.OA.D.9 Identify arithmetic patterns (including patterns in the addition table or multiplication table), and explain them using properties of operations. For example, observe that 4 times a number is always even, and explain why 4 times a number can be decomposed into two equal addends.
Videos for teaching Subtraction: