3. Create a grid. Write one factor (in expanded notation) along the top. Multiply each expanded number in the top factor by each expanded number in the side factor. Add the totals from each box to get your answer. 80 x 30= 2400 6 x 30= 180 80 x 4= 320 6 x 4= 24 Write the other factor (in expanded notation) along the outer right side. 2,400 320 180 +24 2,924 (86) (34) 86 x 34=2,924

5. Create a grid. Write one factor (in expanded notation) along the top. Multiply each expanded number in the top factor by each expanded number in the side factor. Add the totals from each box to get your answer. 30 x 40= 1200 7 x 40= 280 30 x 5= 150 7 x 5= 35 Write the other factor (in expanded notation) along the outer right side. 1,200 280 150 +35 1,665 (37) (45) 37 x 45=1,665

7. Create a grid. Write one factor (in expanded notation) along the top. Multiply each expanded number in the top factor by each expanded number in the side factor. Add the totals from each box to get your answer. 300 x 7= 2100 80 x 7= 560 6 x 7= 42 Write the other factor (in expanded notation) along the outer right side. 2,100 560 +42 2,702 (386) (7) 386 x 7=2,702

8. Now Let’s Try One On Your Own!

10. 40 x 20= 800 8 x 20= 160 40 x 4= 160 8 x 4= 32 800 160 160 +32 1,152 (48) (24) 48 x 24=1,152 Great Job!!!