Magical MultiplicationCreated By: Kristin GenungMath 105
Learning To Multiply:A FEW MYSTIFYING TIPS
It’s as simple as that!!0 x 1 = 00 x 2 = 00 x 3 = 0
1’s1 x 4 = 41 x 5 = 51 x 6 = 6
2 times any number is that number doubled=++22262 x 3 = 6
2’s2’s
Please, Please, Bring on the 3’s…3’s
4’s
4’s
4 x 1 = 4 ( 1 doubled is 2 and 2 doubled is 4 )4 x 2 = 8 ( 2 doubled is 4 and 4 doubled is 8 )4 x 3 = 12 ( 3 doubled is 6 and 6 doubled is 12 )
If you are multiplying by an odd number..Cut the number you are multiplying by in half then drop the decimal
5 x 3 = 15 ( half of 3 is 1.5, then drop decimal)5 x 7 = 35 ( half of 7 is 3.5, then drop the decimal)5 x 9 = 45 ( half of 9 is 4.5, then drop the decimal)
5If it is an even number…- Cut the number in half and add a 0
6’s
Take the number your multiplying by and divide it in half.
Then multiply that number by ten.
Then add the original number you are multiplying by. 6 x 6 = 36 Half of 6 = 3 multiplied by 10 equals 30 then add 6 and you get 36. 6 x 7 = 42 Half of 7 is 3.5 multiplied by 10 equals 35 then add 7 and you get 42.6 x 8 = 48Half of 8 is 4 multiplied by 10 equals 40 then add 8 and you get 48.
7’s
No need to be slick there isn’t a trick…7 x 7 = 497 x 8 = 56
8’s
Once again use the tricks.. 8 x 8 = 64
9’s
Subtract 1 from the number you are multiplying by then add a second number that adds up to nine..
9 x 7 = ( 7 – 1 = 6, 6 +3 = 9 so the answer is 63)9 x 8 = ( 8 – 1 = 7, 7 +2 = 9 so the answer is 72)9 x 9 = ( 9 – 1 = 8, 8 +1 = 9 so the answer is 81)
10’s
Just add a 0 to the number you are multiplying by10 x 2 = 20 10 x 3 = 3010 x 4 = 40
11’s
Any number 1-10 multiplied by 11 is just duplicated.
11 x 3 = 33(3 is multiplied by 11 so you just duplicate 3 side by side) 11 x 4 = 4411 x 5 = 55

Magical Multiplication

  • 1.
    Magical MultiplicationCreated By:Kristin GenungMath 105
  • 2.
    Learning To Multiply:AFEW MYSTIFYING TIPS
  • 5.
    It’s as simpleas that!!0 x 1 = 00 x 2 = 00 x 3 = 0
  • 8.
    1’s1 x 4= 41 x 5 = 51 x 6 = 6
  • 10.
    2 times anynumber is that number doubled=++22262 x 3 = 6
  • 11.
  • 12.
    Please, Please, Bringon the 3’s…3’s
  • 15.
  • 16.
  • 17.
    4 x 1= 4 ( 1 doubled is 2 and 2 doubled is 4 )4 x 2 = 8 ( 2 doubled is 4 and 4 doubled is 8 )4 x 3 = 12 ( 3 doubled is 6 and 6 doubled is 12 )
  • 19.
    If you aremultiplying by an odd number..Cut the number you are multiplying by in half then drop the decimal
  • 20.
    5 x 3= 15 ( half of 3 is 1.5, then drop decimal)5 x 7 = 35 ( half of 7 is 3.5, then drop the decimal)5 x 9 = 45 ( half of 9 is 4.5, then drop the decimal)
  • 21.
    5If it isan even number…- Cut the number in half and add a 0
  • 23.
  • 24.
    Take the numberyour multiplying by and divide it in half.
  • 25.
    Then multiply thatnumber by ten.
  • 26.
    Then add theoriginal number you are multiplying by. 6 x 6 = 36 Half of 6 = 3 multiplied by 10 equals 30 then add 6 and you get 36. 6 x 7 = 42 Half of 7 is 3.5 multiplied by 10 equals 35 then add 7 and you get 42.6 x 8 = 48Half of 8 is 4 multiplied by 10 equals 40 then add 8 and you get 48.
  • 27.
  • 28.
    No need tobe slick there isn’t a trick…7 x 7 = 497 x 8 = 56
  • 29.
  • 30.
    Once again usethe tricks.. 8 x 8 = 64
  • 31.
  • 32.
    Subtract 1 fromthe number you are multiplying by then add a second number that adds up to nine..
  • 33.
    9 x 7= ( 7 – 1 = 6, 6 +3 = 9 so the answer is 63)9 x 8 = ( 8 – 1 = 7, 7 +2 = 9 so the answer is 72)9 x 9 = ( 9 – 1 = 8, 8 +1 = 9 so the answer is 81)
  • 34.
  • 35.
    Just add a0 to the number you are multiplying by10 x 2 = 20 10 x 3 = 3010 x 4 = 40
  • 36.
  • 37.
    Any number 1-10multiplied by 11 is just duplicated.
  • 38.
    11 x 3= 33(3 is multiplied by 11 so you just duplicate 3 side by side) 11 x 4 = 4411 x 5 = 55