What is subtraction?
4th Grade OST Review Packet #2

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Mathematics
•
4th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
Back
Subtraction is the mathematical operation of finding the difference between two numbers. It is represented by the minus sign (-). For example, in the equation 5 - 3 = 2, 2 is the difference.
2.
FLASHCARD QUESTION
Front
What is the process to add fractions with different denominators?
Back
To add fractions with different denominators, first find a common denominator. Then, convert each fraction to an equivalent fraction with that common denominator, and finally, add the numerators.
3.
FLASHCARD QUESTION
Front
What is an equivalent fraction?
Back
4.
FLASHCARD QUESTION
Front
How do you convert a fraction to an equivalent fraction with a different denominator?
Back
5.
FLASHCARD QUESTION
Front
What is multiplication?
Back
Multiplication is a mathematical operation that represents the repeated addition of a number. It is represented by the multiplication sign (×). For example, 3 × 4 means adding 3 four times: 3 + 3 + 3 + 3 = 12.
6.
FLASHCARD QUESTION
Front
What is the formula to find the weight of an object if you know the weight of a similar object?
Back
If one object weighs a certain amount and another object weighs a multiple of that amount, you can find the weight of the second object by multiplying the weight of the first object by that multiple. For example, if a bicycle weighs 30 pounds and a car weighs 90 times as much, the car weighs 30 × 90 = 2700 pounds.
7.
FLASHCARD QUESTION
Front
What is the sum of two numbers?
Back
The sum of two numbers is the result of adding them together. For example, the sum of 3,950 and 405 is 4,355.
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