Repeated Addition
Number Lines
Skip Counting
Arrays
Other
100
What repeated addition sentence does this show?
3 + 3 + 3 + 3 + 3 = 15
100
Use a number line to show 4 jumps of 2.
100
35 marbles
100
Draw a 2 x 6 array.
100
What numbers in this problem are the factors?
3x6=18
3 and 6
200
Draw a picture to show 3 groups of 7 and find the total.
200
Show 3 x 4 on a number line.
200
Use skip counting to continue the pattern to fill in the blanks
4, 8, 12, ____, ____
16, 20
200
Fill in the blanks to match the array
3 x 4 = 12
200
How could you split a 10x12 array into two smaller arrays?
10x10=100 and 10x2=20
100+20=120
300
Rewrite the repeated addition sentence as a multiplication sentence.
2 + 2 = 2 = 6
3 x 2 = 6
300
Complete the multiplication sentence that describes the model.
____ x 2 = 14
7 x 2 = 14
300
Use skip counting to fill in the blanks
3, ____, ____, 12, 15
6, 9
300
Use an array to find 3 x 7.
300
What number is the product?
3x6=18
18
400
Rewrite the multiplication sentence as a repeated addition sentence.
3 x 9 = 27
9 + 9 + 9 = 27
400
Complete the multiplication sentence that describes the model.
3 x ____ = 15
3 x 5 = 15
400
Why isn't this an example of skip counting?
3, 6, 8, 10, 12, 15
The pattern is counting by different numbers; sometimes skip counting by 2, sometimes skip counting by 3.
400
Arianna baked cookies. She baked 3 rows of cookies with 9 cookies in each row. Use an array to find the total number of cookies Arianna baked.
3 x 9 = 27
27 cookies
400
Bob broke up an array for 6 x 3 into two new arrays. Both of his new arrays are the same size. What were the two arrays?
Two 3 x 3 arrays
500
Write a repeated addition sentence and a multiplication sentence to match the array.
5 + 5 + 5 = 15
3 x 5 = 15
500
Complete the multiplication sentence that describes the model.
____ x ____ = ____
3 x 2 = 6
500
Use skip counting to show three groups of 7
7, 14, 21
500
Use an array to find the missing factor.
4 x ____ = 28
4 x 7 = 28
500
What is it called when you change the order of the numbers being multiplied and you still get the same answer?
For example 2x5=10 and 5x2=10
Communicative Property