You solve an equation by finding the value of this.
unknown
100
15-8=
7
100
Tom has 3 rows of apples with 6 apples in each row. How many apples does he have total?
(you may draw an array, use a number line, or make equal groups to help you find the answer)
18 apples
100
Martha has 28 volleyballs. She needs to put 4 volleyballs in each bin. How many bins can she fill?
(Also write an equation she can use to help her solve the problem.)
7 bins
28 ÷ ___ = 4
28 ÷ 4 =
200
You can use this to display objects in equal groups.
array
200
12 + 8=
20
200
Draw an array for 3 x 4.
see picture
200
25 ÷ 5 =
5
300
This is a line marked in equal units and numbered in order.
number line
300
13-9=
4
300
Mike made six- 2 point baskets. Write the multiplication and addition equation to solve this problem.
What is 6 x 2= 12
2 + 2 + 2 +2 +2+2= 12
300
Can I divide 27 basketballs into equal groups of 2?
No, there would be one left over.
400
This is the operation you use to join equal groups.
multiplication
400
20-7=
13
400
Amy puts 3 necklaces in 5 gift bags. How many necklaces does he have total?
( Show the multiplication problem on a number line)
15 necklaces
400
Mike has 24 pencils. He wants to put 4 pencils in each pencil case. How many pencil cases can he fill?
6 pencil cases
500
These equations are an example of this propery
6 x 2 = 12 2 x 6= 12
3 x 1 = 3 1 x 3 = 3
Communicative Property of Multiplication
500
16-5=
11
500
Jordan has 5 packages of markers with 6 markers in each package. How many markers does he have in all?
(you may draw an array, use a number line, or make equal groups to help you find the answer)
30 markers
500
Tom needs to put 9 balls in each bin. He has 45 balls. What equation will he use to solve this problem? How many bins does he need?