Presentation is loading. Please wait.

Presentation is loading. Please wait.

LET’S TALK MULTIPLICATION. HOW WOULD YOU SOLVE THE FOLLOWING? 36 x 4 203 x 8 64 x 6.

Similar presentations


Presentation on theme: "LET’S TALK MULTIPLICATION. HOW WOULD YOU SOLVE THE FOLLOWING? 36 x 4 203 x 8 64 x 6."— Presentation transcript:

1 LET’S TALK MULTIPLICATION

2 HOW WOULD YOU SOLVE THE FOLLOWING? 36 x x 8 64 x 6

3 LET’S SIMPLIFY Can you decompose one of the factors to make the problem easier to solve mentally? 36 x 4 What can you do to the 4 to simplify the problem?

4 LET’S SIMPLIFY Can you decompose one of the factors to make the problem easier to solve mentally? 36 x 4 36 x (2 + 2) (36 x 2) + (36 x 2) = 144

5 LET’S SIMPLIFY Can you decompose one of the factors to make the problem easier to solve mentally? 36 x 4 What can you do to the 36 to simplify the problem?

6 LET’S SIMPLIFY Can you decompose one of the factors to make the problem easier to solve mentally? 36 x 4 (30 + 6) x 4 (30 x 4) + (6 x 4) = 144

7 LET’S SIMPLIFY Can you decompose one of the factors to make the problem easier to solve mentally? 203 x 8 What can you do to the 8 to simplify the problem?

8 LET’S SIMPLIFY Can you decompose one of the factors to make the problem easier to solve mentally? 203 x x (4 + 4) (203 x 4) + (203 x 4) =1624

9 LET’S SIMPLIFY Can you decompose one of the factors to make the problem easier to solve mentally? 203 x 8 What can you do to the 203 to simplify the problem?

10 LET’S SIMPLIFY Can you decompose one of the factors to make the problem easier to solve mentally? 203 x 8 ( ) x 8 (200 x 8) + (3 x 8)

11 LET’S SIMPLIFY Can you decompose one of the factors to make the problem easier to solve mentally? 64 x 6 What can you do to the 6 to simplify the problem?

12 LET’S SIMPLIFY Can you decompose one of the factors to make the problem easier to solve mentally? 64 x 6 64 x ( 3 + 3) (64 x 3) + (63 x 3)

13 LET’S SIMPLIFY Can you decompose one of the factors to make the problem easier to solve mentally? 64 x 6 What can you do to the 64 to simplify the problem?

14 LET’S SIMPLIFY Can you decompose one of the factors to make the problem easier to solve mentally? 64 x 6 (60 + 4) x 6 (60 x 6) + (4 x 6)

15 LET’S PARTNER PRACTICE  Each partner will choose a different factor to decompose to simplify the problem.  Compare answers.  Explain your process to your partner. 89 x 7

16 LET’S PARTNER PRACTICE  Each partner will choose a different factor to decompose to simplify the problem.  Compare answers.  Explain your process to your partner. 112 x 8

17 LET’S PARTNER PRACTICE  Each partner will choose a different factor to decompose to simplify the problem.  Compare answers.  Explain your process to your partner. 43 x 9

18 LET’S PARTNER PRACTICE  Each partner will choose a different factor to decompose to simplify the problem.  Compare answers.  Explain your process to your partner. 602 x 12

19 LET’S PARTNER PRACTICE  Each partner will choose a different factor to decompose to simplify the problem.  Compare answers.  Explain your process to your partner. 43 x 13

20 ON YOUR OWN  Solve the following problems using the strategy we learned today.  You choose which number to decompose. 432 x 4263 x 1256 x 1421 x x x 3684 x 4305 x x x 7646 x 593 x 17

21 SO, WHAT DO YOU THINK?  Was the strategy easy to learn?  What kind of factor (larger or smaller) did you prefer to decompose? Why?  Had you used this strategy to multiply before?  Does this strategy make mental math simpler?  Do you think you would be more accurate with this method or the traditional method? Why?


Download ppt "LET’S TALK MULTIPLICATION. HOW WOULD YOU SOLVE THE FOLLOWING? 36 x 4 203 x 8 64 x 6."

Similar presentations


Ads by Google