Understanding Word Problems (+/-)

Flashcard
•
Mathematics
•
4th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
What is subtraction?
Back
Subtraction is the mathematical operation of finding the difference between two numbers. It is represented by the symbol '-'. For example, in the equation 5 - 2 = 3, 2 is subtracted from 5.
2.
FLASHCARD QUESTION
Front
How do you determine which operation to use in a word problem?
Back
Look for keywords in the problem. Words like 'how many more', 'left', or 'fewer' often indicate subtraction, while 'total', 'combined', or 'in all' suggest addition.
3.
FLASHCARD QUESTION
Front
Sarah tosses a football 10 meters which is 2 meters farther than Jose. How far did Jose throw his football?
Back
Jose threw his football 8 meters (10 - 2 = 8).
4.
FLASHCARD QUESTION
Front
What operation do these words help you solve? 'How many more?'
Back
Subtraction.
5.
FLASHCARD QUESTION
Front
Mrs. Wright receives 2 boxes of books. One box has 157 books and the other box has 28 fewer books than box one. How many books are in box 2?
Back
Box 2 has 129 books (157 - 28 = 129).
6.
FLASHCARD QUESTION
Front
What operation do these words help you solve? 'In total'
Back
Addition.
7.
FLASHCARD QUESTION
Front
Josh had $15.00 to spend at the movie theater. He spent $8.50 on a movie ticket, $3.50 on a box of popcorn, and $1.75 on a soda. How much money did Josh have left?
Back
Josh had $1.25 left ($15.00 - $8.50 - $3.50 - $1.75 = $1.25).
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