MyMathKidK-8 Curriculum

Multi-Digit Mental Addition

Add larger numbers mentally using break-apart strategies

What You'll Learn

  • Break apart larger numbers
  • Add in steps mentally

📖Multi-Digit Addition

234 + 156: Break into 234 + 100 + 50 + 6. Add 234 + 100 = 334, then 334 + 50 = 384, finally 384 + 6 = 390!

Practice Worksheets

Multi-Digit Addition 1

Mental addition with larger numbers

10 problems
Start

Multi-Digit Addition 2

More multi-digit addition

10 problems
Start

Multi-Digit Addition 3

Additional practice

10 problems
Start

Multi-Digit Addition 4

Keep practicing

10 problems
Start

Multi-Digit Addition 5

Master multi-digit addition

10 problems
Start
Next
Mental Multiplication Strategies