Do I Add or Subtract?
Flashcard
•
Mathematics
•
3rd - 4th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the primary operation used to find the difference between two numbers?
Back
Subtraction
2.
FLASHCARD QUESTION
Front
What is the primary operation used to combine two quantities into a total?
Back
Addition
3.
FLASHCARD QUESTION
Front
In the context of word problems, when would you use subtraction?
Back
When you need to find out how much is left after some quantity has been removed or lost.
4.
FLASHCARD QUESTION
Front
In the context of word problems, when would you use addition?
Back
When you need to find a total after combining two or more quantities.
5.
FLASHCARD QUESTION
Front
If a theater has 450 seats and 286 are occupied, how do you find the number of empty seats?
Back
Use subtraction: 450 - 286 = 164 empty seats.
6.
FLASHCARD QUESTION
Front
If Mrs. Thomas had 158 pencils and lost 89, how do you calculate how many she has left?
Back
Use subtraction: 158 - 89 = 69 pencils remaining.
7.
FLASHCARD QUESTION
Front
If David has 138 tools and receives 94 more, how do you find the total number of tools he has?
Back
Use addition: 138 + 94 = 232 tools.
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