Number Lines and Arrays
Vocabulary
Word Problems
Division
Prove It
100
Jose drew the array below:
OOOO
OOOO
OOOO
OOOO
OOOO
Write a multiplication sentence for the array.
5 x 4
100
The answer when you multiply.
20 in 5x4=20
Product
100
Hophni has 5 packs of brownies. Each pack has 8 brownies. How many brownies does he have?
40 brownies
100
Zachary has $25. He has $5 bills. How many $5 bills does he have? Can you use skip-counting to help you solve this question?
He has five $5 bills
5, 10, 15, 20, 25
100
3+3+3+3 is the same as 3x4.
PROVE IT.
Each equals 12 (show work)
200
Ben planted 3 rows of sunflowers with 6 plants in each row.
How many sunflowers did she plant in all? Draw an array to show what his rows of sunflowers look like.
18 sunflowers
o o o o o o
o o o o o o
o o o o o o
200
The answer when you divide
4 in:
20 ÷ 5 = 4
Quotient
200
Brenden hit 3 home runs in each of the 4 innings of his baseball game. Write and solve an equation to show how many runs he scored.
3x4=12
200
How would you use repeated subtraction to solve 28÷4? What is the solution?
6
28-4=24
24-4=20
20-4=16
16-4=12
12-4=8
8-4=4
4-4=0
200
Multiplication is in the same family as division.
PROVE IT!
They are related operations (show work)
300
What multiplication equation is shown on the number line above?
3x4=12
300
A math sentence with an equal sign. The amount on one side of the equal sign has the same value as the other side
Equation
300
Sara and her mom made cookies. Which total can be found using the expression 4 x 3?
A) The total amount of cookies is Sarah makes 4 and mom makes 3.
B) The amount of sugar needed if they want to make 7 cookies.
C) The total number of cookies if they made 4 different kind and 3 of each kind.
D) The total number of cookies if they made 4 and then ate 3.
C
300
Shawn is planting seeds. He has 18 seeds. He puts them in 3 rows. How many seeds are in each row. Draw an array to solve this problem.
6 seeds in each row
o o o o o o
o o o o o o
o o o o o o
300
You can show division as repeated subtraction.
PROVE IT!
Any correct example
400
Christian was skip-counting on a number line to show 3 x 6. He jumped to 3, then 6, then 10, then 13, then 16, then 19. He wrote 3x6=19. Explain his mistake.
He jumped to 10 instead of 9 so he accidentally added 6 + 4 instead of 3.
400
A number that is divided by another number
20 in:
20 ÷ 5 = 4
Dividend
400
Taniyah has 10 juice boxes. She wants to give 2 juice boxes to each of her friends. How many kids can she give juice boxes to?
Write a division and a repeated subtraction equation to solve.
5 kids.
10 ÷ 2 = 5
10-2-2-2-2-2=0
400
Skarlett had 30 stickers. She placed them in 6 rows. How many stickers are in each row?
5 stickers in each row
400
When multiplying, it doesn’t matter which order you write your factors
PROVE IT!
Any example of the commutative property
500
What multiplication problem is shown in the number line?
4x5=20
500
The number by which another number is divided
4 in:
20 ÷ 4 = 5
Divisor
500
Dorian needs to paint 6 rooms. For 2 rooms, he needs 3 cans of paint. How many cans of paint will he need for all 6 rooms?
9 cans of paint
500
Ayden has 35 Skittles. He eats 5 each day. How many days will he be able to eat Skittles?
7 days
500
An array can show multiplication and division.
PROVE IT!
Any correct example