1 / 20

Multiplication Made Easy

Multiplication Made Easy. What is multiplication?. Rows and columns 4 x 3= 4 groups of 3. 1-same as the number; imagine it as one group of the number. 2-double the original. 4- we double the number than double again!. 4s. If 4 x 6= 6x2x2=12+12=24 Then 234x4=234x234=(468)x2 =936

hashim
Download Presentation

Multiplication Made Easy

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  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 number

  4. 2-double the original

  5. 4- we double the number than double again!

  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 set

  8. Square numbers-make a diagonal on the number chart

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

  10. 10-just add a zero

  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 5

  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 9

  15. 9s • If 9x4=36 (10x4-4) • Then 9x43= ____ (10x43-43) • Try 9x290=________ • Try 9X365=________

  16. 6x7; 6x8; 7x8= the ugly ones

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

  18. 11—double the digit

  19. 12

  20. Challenge Videos to Increase Speed • Breaking down multiplication: • http://www.youtube.com/watch?v=wUiBibMbzoY • Be a Human Calculator: • http://www.youtube.com/watch?v=rf3_36a9MWc • http://www.youtube.com/watch?v=Et_VJAA_fuE • http://www.youtube.com/watch?v=PYrgjMubh-c • http://www.youtube.com/watch?v=7X85-tylGTQ

More Related