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Questions and Answers
Which operation is used to add two decimals together?
Which operation is used to add two decimals together?
- Addition (correct)
- Subtraction
- Division
- Multiplication
What is the result of multiplying a decimal by 10?
What is the result of multiplying a decimal by 10?
- The decimal becomes smaller
- The decimal stays the same
- The decimal becomes larger (correct)
- The decimal becomes negative
What is the value of 0.25 divided by 0.5?
What is the value of 0.25 divided by 0.5?
- 0.125
- 0.5
- 0.75
- 2 (correct)
Which operation is used to subtract two decimals?
Which operation is used to subtract two decimals?
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Which of the following is the correct way to write the decimal number forty-five thousandths?
Which of the following is the correct way to write the decimal number forty-five thousandths?
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What is the result of dividing 0.6 by 0.2?
What is the result of dividing 0.6 by 0.2?
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Study Notes
Operations with Decimals
- Addition is the operation used to combine two decimals together, resulting in a sum.
- Subtraction is used to determine the difference between two decimals.
Multiplication and Division of Decimals
- Multiplying a decimal by 10 shifts the decimal point one place to the right, increasing the value by a factor of ten.
- Dividing 0.6 by 0.2 yields a result of 3, as it calculates how many times 0.2 fits into 0.6.
Division of Decimals
- Dividing 0.25 by 0.5 results in a value of 0.5, indicating how many halves fit into a quarter.
Decimal Representation
- The decimal number for forty-five thousandths is written as 0.045.
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