Multiplication can be learned many different ways, this can be frustrating for parents. We were taught one way to multiply and divide but now we allow the students to explore different strategies and let them find the one that works best for them.
Here are the strategy explanations for you to use at home:
- Using a multiplication chart or skip counting
ex) 4x7= 4,8,12,16,20,24,28
Skip counting should be used when a multiple closer to the multiple asked is known.
for ex) 4x7, well I know 5x7=35, so then subtract one group of 7 and my answer is 28.
Here are the strategy explanations for you to use at home:
- Using a multiplication chart or skip counting
ex) 4x7= 4,8,12,16,20,24,28
Skip counting should be used when a multiple closer to the multiple asked is known.
for ex) 4x7, well I know 5x7=35, so then subtract one group of 7 and my answer is 28.
Repeated doubling
8x6=( 8 rows of 6)
4x6 and 4x6 ( 4 rows of 6) or break it down further
2x6, 2x6 ,2x6, 2x6 (2 rows of 6) ( 2x6= 12)
Break down to manage questions the you can add answer together. So 12+12+12+12= 48, so 8x6=48
This strategy is is repeating smaller multiplications, to equal the same amount.
Using multiples of 10
3x60= 180
or think of it as 3x6= 18 then multiply by 10 ( or add a zero for the place value)
3x600=1800
Halving and Doubling
ex) 14x5, you can half the 14 to make 7 and double the 5 to make 10. 7x10= 70 So, 14x5=70
Arrays
Multiplying 13x16
Break apart the number into their place value because it's easier to work with 10's and single digits. Then you are filling in each square. multiplying 10x10=100,10x3=30,6x10=60,6x3=18. Add the answers together to give you 208.
so 13x16=208
8x6=( 8 rows of 6)
4x6 and 4x6 ( 4 rows of 6) or break it down further
2x6, 2x6 ,2x6, 2x6 (2 rows of 6) ( 2x6= 12)
Break down to manage questions the you can add answer together. So 12+12+12+12= 48, so 8x6=48
This strategy is is repeating smaller multiplications, to equal the same amount.
Using multiples of 10
3x60= 180
or think of it as 3x6= 18 then multiply by 10 ( or add a zero for the place value)
3x600=1800
Halving and Doubling
ex) 14x5, you can half the 14 to make 7 and double the 5 to make 10. 7x10= 70 So, 14x5=70
Arrays
Multiplying 13x16
Break apart the number into their place value because it's easier to work with 10's and single digits. Then you are filling in each square. multiplying 10x10=100,10x3=30,6x10=60,6x3=18. Add the answers together to give you 208.
so 13x16=208