1. Math Message: 1) Make Ballpark Estimations for 56 + 79 56 + 79 891 + 213 891 + 213 2) Play Estimation Tic-Tac-Toe with someone at your table

3. Column-Addition Method SRB page 11

4. Column Addition Method 1. Draw lines to separate the 1’s, 10’s and 100’s places 2. Add the numbers in each column. Write each sum in its column 3. If there are 2-digits in the 1’s place, trade 10 ones for 1 ten 4. If there are 2 digits in the 10’s place, trade 10 tens for 1 hundred

5. Column-Addition Method Check Your Understanding 1. 327 + 252 + 252 579 2. 67 + 45 112 1

6. Addition Games Ghost Blasters Ghost Blasters 2-Digit 3-Digits

7. 1 ) Math Journal pages 42-43 2) Play Tic-Tac-Toe Addition 3) Math Boxes 2.4-2.7