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Addition

Master addition step by step, from basic concepts to advanced problem solving

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Learning Path

Start with Lesson 1 and work your way through!

1

2-Digit Addition

Easy

Add 2-digit numbers without regrouping

Add ones to ones and tens to tensLine up digits by place value+1 more
→
2

2-Digit Addition with Regrouping

Medium

Learn to carry when adding

Understand when to regroup (carry)Carry from ones to tens+1 more
→
3

3-Digit Addition

Medium

Add 3-digit numbers without regrouping

Add hundreds, tens, and onesLine up numbers correctly+1 more
→
4

3-Digit Addition with Regrouping

Challenging

Regroup across multiple columns

Regroup from ones to tensRegroup from tens to hundreds+1 more
→
5

Mixed Multi-digit Addition

Challenging

Practice with various digit combinations

Add numbers with different digit countsAlign numbers correctly+1 more
→
6

4-Digit Addition

Advanced

Add larger numbers with thousands

Add 4-digit numbersWork with the thousands place+1 more
→
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K-8 Curriculum

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