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3rd Grade Math
11. 3.NBT.A.2
11.6 Subtracting with Digits Up to 1000
Subtracting with Digits Up to 1000
Learn how to subtract three digit numbers up to 1000 using place value columns, with clear steps and worked examples to build confidence.
What You'll Learn
Line up numbers by place value before subtracting hundreds, tens, and ones columns.
Subtract each column from right to left, starting with the ones place.
Recognize when a column needs regrouping because the top digit is smaller than the bottom digit.
Check a subtraction answer by adding it back to the number being subtracted.
Apply estimation to judge whether an answer to a 3 digit subtraction problem is reasonable.
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
Learning resources
Skills
Subtraction
Place Value
Regrouping
Mental Math
Three-Digit Numbers
OH Curriculum Aligned