Find the Missing Addend
4 + ___ = 9
5
14 – ___ = 8
6
Solve and represent this problem using the part-part whole.
10 = 4 + ___
10 is the whole
4 is a part
6 is the missing part
10 – ___ = 6
4
There are 9 birds sitting on the fence. Some are blue and some are red. How many could be blue and how many could be red?
Answers will vary.
9 + 0 , 8 + 1, 7 + 2, 6 + 3 , 5 + 4, 4 + 5, 3 + 6,
2 + 7, 1 + 8, 0 + 9
6 + ___ = 11
5
___ + 9 = 11
2
Solve and represent this problem using the part-part whole.
9 = ___ + 2
9 is the whole
7 is the missing part
2 is a part
9 – ___ = 3
6
John ate 11 cookies yesterday. He ate 7 cookies today. How many cookies did he eat in all?
11 + 7 = 18
John ate 18 cookies
Emily had 7 toy cars. She got some more. Now she has 13. How many more did she get?
6 toy cars.
I have 12 crayons. My friend gave some more. Now I have 18 crayons. How many crayons did my friend give me?
6 crayons.
Solve and represent this problem using the part-part whole.
I had 13 blocks. My friend took 8 blocks. How many blocks do I have left?
13 is the whole
8 is a part
5 is the missing part.
There were 13 cookies. Some were eaten. Now there are 9 cookies. How many were eaten?
13 - _4_ = 9
4 cookies were eaten.
The orange pencil is longer than the blue pencil.
The purple pencil is shorter than the blue pencil.
The blue pencil is _______ than the orange pencil.
shorter
The blue pencil is shorter than the orange pencil.
There were 5 dogs. Some more came. Now there are 14. How many came?
9 dogs came.
There were 17 marbles. Some were lost. Now there are 3 marbles. How many marbles were lost?
14 marbles were lost.
Solve and represent this problem using the part-part whole.
Luke had 7 gum drops. His mom gave him some more. Now he has 18 gum drops. How many gum drops did his mom give him? What equation should you use to solve this problem? (equation only)
7 + ____ = 18
There were 16 fish in the tank. Some were moved to another tank. Now there are 4 fish left.
How many fish were moved? What equation do you use to solve this equation? (equation only)
16 - ___ = 4
Alex has 14 yellow and 5 blue M&Ms. Max has 5 brown M&Ms and 14 red M&Ms. Do the kids have the same amount of M&Ms? How do you know?
Yes because 14 + 5 = 19 is the same as 5 + 14 = 19 (commutative property).
There were 9 kids at the park. Some more came. Now there are 19. How many more kids came to the park?
10 kids.
There are 18 students. 9 are girls. How many are boys?
9 are boys.
Solve and represent this problem using the part-part whole.
20 beavers were in the water. Some beavers left the water. Now there are 7 beavers in the water. How many beavers left?
Which equation could be used to solve the problem?
A. 20 + ___ = 7
B. 20 + 7 = ____
C. 20 - ____ =7
C. 20 - ___ = 7
20 is the whole
13 is the missing part
7 is a part.
There were 14 pencils in the cup. Some were used. Now there are 6 pencils left.
How many pencils were used?
Which equation could be used to solve the problem? Then solve.
A. 14 + ___ = 6
B. 14 - ___ = 6
C. 14 + 6 = ___
B. 14 - ___ = 6
14 is the whole
8 is the missing part
6 is a part
Mrs. Stogner has 20 cupcakes. Some are chocolate and some are vanilla. How many chocolate cupcakes can she have? How many vanilla cupcakes can she have ?
Answers will vary.