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Chapter 3.1
Adding with regrouping (using base ten blocks)
What You'll Learn
Identify place values (ones, tens, hundreds, thousands) in multi-digit numbers
Represent numbers visually using base ten blocks for concrete understanding
Apply regrouping by exchanging 10 smaller units for 1 larger unit
Add multi-digit numbers by aligning place values and starting with the ones place
Carry regrouped values to the next place value when sums exceed 9
What You'll Practice
1
Adding two-digit numbers with regrouping in the ones place
2
Adding three-digit numbers with multiple regrouping steps
3
Solving addition problems that create new place values (e.g., two 2-digit numbers becoming a 3-digit sum)
4
Adding three numbers in a single problem with regrouping
5
Solving word problems involving multi-step addition with regrouping
Why This Matters
Mastering addition with regrouping builds your foundation for all higher-level math. You'll use this skill daily when handling money, measuring ingredients, calculating distances, and solving complex problems in algebra and beyond.
This Unit Includes
11 Video lessons
Practice exercises
Skills
Place Value
Regrouping
Base Ten Blocks
Multi-Digit Addition
Carrying
Visual Models
Word Problems
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