3's Multiplication Strategies
|
Double it and add a group.
3 x 5 ---> 2 x 5 = 10 ---> 10 + 5 = 15
double 5 is 10 one group of 5 added to 10 is 15
3 x 5 = 15
3 x 7 ---> 2 x 7 = 14 ---> 14 + 7 = 21
double 7 is 14 one group of 7 added to 14 is 21
3 x 5 ---> 2 x 5 = 10 ---> 10 + 5 = 15
double 5 is 10 one group of 5 added to 10 is 15
3 x 5 = 15
3 x 7 ---> 2 x 7 = 14 ---> 14 + 7 = 21
double 7 is 14 one group of 7 added to 14 is 21
3's Multiplication Video- double then add a group
3's Music Video
6's Multiplication Strategies
|
Multiply by 5 and add a group! (5 groups + 1 group = 6 groups)
6 x 4 ---> 5 x 4 = 20 ---> 20 + 4 = 24
5 times 4 is 20 one group of 4 added to 20 is 24
6 x 4 = 24
---------------------------------------------------------
6 x 5 ---> 5 x 5 = 25 ---> 25 + 5 = 30
5 times 5 is 25 one group of 5 added to 25 is 30
6 x 5 = 30
6 x 4 ---> 5 x 4 = 20 ---> 20 + 4 = 24
5 times 4 is 20 one group of 4 added to 20 is 24
6 x 4 = 24
---------------------------------------------------------
6 x 5 ---> 5 x 5 = 25 ---> 25 + 5 = 30
5 times 5 is 25 one group of 5 added to 25 is 30
6 x 5 = 30