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Two-Digit Addition

Lesson 1 - Add Tens

I will use addition facts to add tens.

Lesson 2 - Count On Tens and Ones

I will count on by tens and ones to find sums.

Lesson 3 - Problem Solving Strategy: Work Backward

I will work backward to solve problems.

    Lesson 4 - Regroup Ones as Tens

    I will regroup to find sums.

    Lesson 5 - Add One-Digit Numbers and Two-Digit Numbers

    I will add one-digit and two-digit numbers.

    Lesson 6 - Add Two-Digit Numbers

    I will add two-digit numbers.

    Lesson 7 - Estimate Sums

    I will estimate the sum.

    Lesson 8 - Add Three Two-Digit Numbers

    I will add three two-digit numbers.

    Lesson 9 - Problem Solving Investigation

    I will choose a strategy to solve a problem.


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