Title vocabulary *Objective Name:_______________ Date:________________ Definition Content, big ideas, examples Summary

19 x 6 =154 Factors Product Linear Expand ed Strategy Multiplication Strategies Objectives: I can multiply multi-digit whole numbers using multiple strategies. In this strategy I will expand the factors, multiply the factors, and write the product in a line. Example: 37 x 5 = 37 x 5= (30 x 5) + (7 x 5) = = 185

24 x 3 = 24 x 3= (20 x 3) + (4 x 3)= = 72 69x 8= 69x8= (60x8) + (9x8) = = 552 Now lets do this equation together 62 x 4= Examples:

Vertical Expande d Strategy 2 digits by 1 digit In this strategy I will expand the factors, multiply the factors, write the product vertically, and then, I will add the product to get the final product. 23 x 6= 23 x 6 18 (6 x 3) ( 6 x 20) x 5 45 (5 x 9) +200 (5 x 40) x 5=

Now lets do this one equation together 82 x 6 = Examples: 45 x (2 x 5) 80 (2 x 40) 50 (10 x 5) (10 x 40) digit by 2 digit

Grid Traditiona l Strategy In this strategy I will use a grid to multiply. The grid breaks apart the factors into tens and ones. 47 x 32 =

, , x 82 =

42 x x Traditiona l

3-2-1 On your slates write: 3 multiplication strategies you have learned. 2 reasons you like a particular strategy-name the strategy too! 1 idea to help you remember the strategies.