1. Multiplication Made Easy

2. What is multiplication?
Rows and columns
4 x 3= 4 groups of 3

3. 1-same as the number; imagine it as one group of the number2 3 4 5 6 7 8 9 10

4. 2-double the original 1 2 3 4 5 6 7 8 9 10 12 14 16 18 20

5. 4- we double the number than double again!1 2 3 4 5 6 7 8 9 10 12 14 16 18 20 24 28 32 36 40

6. 4s If 4 x 6= 6x2x2=12+12=24 Then 234x4=234x234=(468)x2 =936
Try 22x4=______

7. 3- we double the number and then add one more set1 2 3 4 5 6 7 8 9 10 12 14 16 18 20 15 21 24 27 30

8. Square numbers-make a diagonal on the number chart1 2 3 4 5 6 7 8 9 10 12 14 16 18 20 15 21 24 27 30 28 32 36 40 25 49 64 81
100

9. Also
11x11=121
12x12=144
Try 13x13=____

10. 10-just add a zero 1 2 3 4 5 6 7 8 9 10 12 14 16 18 20 15 21 24 27 30 28 32 36 40 25 50 60 49 70 64 80 81 90
100

11. 10s 10x5=50 (5 and add a zero at the end) 10x 234=2340
Try 10 x 3456=_______
Try 1000 x 239=_______

12. 5-multiply by 10 and then divide by two; all numbers end with 0 or 52 3 4 5 6 7 8 9 10 12 14 16 18 20 15 21 24 27 30 28 32 36 40 25 35 45 50 60 49 70 64 80 81 90
100

13. 5s
Try 5 x4= (10 x 4)/2=40/2=20
Try 5 x32=
Try 5 x 400=

14. 9-multiply by 10 and remove a set; the digits always add to 92 3 4 5 6 7 8 9 10 12 14 16 18 20 15 21 24 27 30 28 32 36 40 25 35 45 50 54 60 49 63 70 64 72 80 81 90
100

15. 9s If 9x4=36 (10x4-4) Then 9x43= ____ (10x43-43) Try 9x290=________

16. 6x7; 6x8; 7x8= the ugly ones 1 2 3 4 5 6 7 8 9 10 12 14 16 18 20 15 21 24 27 30 28 32 36 40 25 35 45 50 42 48 54 60 49 56 63 70 64 72 80 81 90
100

17. The ugly ones
6x7=42 (e.g. 6x7=(6x6)+(6x1))
6x8=48
7x8=56

18. 11—double the digit 1 2 3 4 5 6 7 8 9 10 11 12 14 16 18 20 22 15 21 24 27 30 33 28 32 36 40 44 25 35 45 50 55 42 48 54 60 66 49 56 63 70 77 64 72 80 88 81 90 99
100
110
121

19. 12 1 2 3 4 5 6 7 8 9 10 11 12 14 16 18 20 22 24 15 21 27 30 33 36 28 32 40 44 48 25 35 45 50 55 60 42 54 66 72 49 56 63 70 77 84 64 80 88 96 81 90 99
108
100
110
120
121
132
144

20. Challenge Videos to Increase Speed
Breaking down multiplication:
Be a Human Calculator: