Vocabulary
Strategies
World Problems
Addition/Subtraction
Fact Families
100
addends
The two numbers you add together in an addition sentences are called _______ .
100
making doubles
We can use certain facts to help us add and subtract. This method involves using two numbers that are exactly the same. What method is this?
100
0
Miss Hetzner had 6 star stickers to give to students who clipped up to star student. She had 6 students clip up to star student today and had to give each a star sticker. How many star stickers does Miss Hetzner have left?
100
18
10 + 8
100
6+3= ____
What is 9
200
sum
When we add two numbers together in an addition problem the answer is called the ______.
200
counting back
One method you can use to subtract involves a number line and it is called ______ ______.
200
5 scarves
Miss Hetzner and Ms. Martin went shopping for more scarves this weekend. Ms. Martin bought 14 scarves and Miss Hetzner bought 9 scarves. How many more scarves did Ms. martin buy?
200
24
15 + 9
200
9+4 = _____
What is 13
300
difference
When we subtract one number from another in a subtraction problem we call the answer the _______.
300
counting on
One method you can use to add involves a number line and it is called ______ _______.
300
20 candles
Miss Hetzner loves to collect candles. She has 24 candles and gives 6 candles to her friends to enjoy during the fall season. Miss Hetzner's brother gives her 2 candles for her birthday. How many candles does Miss Hetzner have now?
300
19 - 2 = ___
What is 17
300
11+5 = ____
What is 16
400
add
To _____, you join two parts together.
400
zero
Whenever a number is subtracted from the same number the difference will ALWAYS be ______.
400
21 fish
There were 18 fish in the aquarium at the zoo. The zookeepers put 10 more fish into the tank. Sadly, 7 fish died in the next week. How many fish are in the tank now?
400
17-5 = ____
What is 12
400
17+8 = ____
What is 25
500
fact family
Addition and subtraction facts that use the same three numbers can be called a ______ ______.
500
making a ten
If given the problem 7 + 5 I could give away 3 from my 5 to the 7. That leaves me with 10 and 2 to add together. What addition method have I just used?
500
6 dollars
Ms. Martin went to the store to buy candy for pencil friends. She went into the store with 20 dollars and came out with 8 dollars. She bought two bags of candy. How much was ONE bag of candy?
500
22 - 7 = _____
What is 15
500
22+7 = ____
What is 29
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