Download 14 - 9 = 5 - Net Start Class

Name
1
Algebra • Use Equations to
Represent Problems
LESSON
26
2.4.A, 2.4.C
OBJECTIVE Write equations to represent and solve a variety of addition and subtraction situations.
Some red fish and 9 green fish are in a tank.
The tank has 14 fish. How many red fish are there?
?
9
14
Write a number sentence.
Use a
■ for the missing number.
14 - 9 = ■
© Houghton Mifflin Harcourt Publishing Company
5
red fish in the tank
Write a number sentence for the problem.
for the missing number. Then solve.
Use a
■
1. There are 13 trees in a park.
8 are pine trees. The rest are
oak trees. How many oak trees
are there?
oak trees
Number and Operations
?
8
So, there are
13
51
Name
1
2.4.A, 2.4.C
Algebra • Use Equations to
Represent Problems
Write a number sentence for the problem.
Use a
for the missing number. Then solve.
■
1. There were 15 apples in a bowl.
Dan used some apples to make
a pie. Now there are 7 apples in
the bowl. How many apples did
Dan use?
apples
2. Amy has 16 gift bags. She fills
8 gift bags with whistles. How
many gift bags are not filled
with whistles?
gift bags
3. There were 5 dogs at the park.
Then 9 more dogs joined them.
How many dogs are at the
park now?
© Houghton Mifflin Harcourt Publishing Company
dogs
Problem Solving
Write or draw to show how you solved the problem.
4. Tony has 7 blue cubes and 6 red cubes.
How many cubes does he have in all?
cubes
52
Lesson 26