## 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. |

Study Guide and Review | |