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3rd Grade Math
9. 3.NBT.A.2
9.5 Subtracting with Digits Up to 1000
Subtracting with Digits Up to 1000
What You'll Learn
Subtract multi-digit numbers up to 1000 using place value understanding
Apply regrouping techniques when subtracting across hundreds, tens, and ones places
Subtract by 10 and 100 using mental math strategies and place value patterns
Solve subtraction problems by aligning digits correctly in columns
What You'll Practice
1
Subtracting three-digit numbers with and without regrouping
2
Subtracting multiples of 10 and 100 from larger numbers
3
Computing differences using vertical subtraction format
Why This Matters
Mastering subtraction with larger numbers builds your confidence with everyday math like calculating change, measuring distances, and comparing quantities. This skill is essential for success in multiplication, division, and all future math courses.
This Unit Includes
1 Video lesson
Practice exercises
Skills
Subtraction
Place Value
Regrouping
Mental Math
Three-Digit Numbers
TN Curriculum Aligned