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Questions and Answers
What is the result of $12.75 + 3.25$?
What is the result of $12.75 + 3.25$?
Subtracting a decimal means to take away from a total.
Subtracting a decimal means to take away from a total.
True
What is the product of $4.2$ and $3.5$?
What is the product of $4.2$ and $3.5$?
$14.7
To divide $9.6$ by $2$, the result is __________.
To divide $9.6$ by $2$, the result is __________.
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Match the following operations with their descriptions:
Match the following operations with their descriptions:
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Study Notes
Decimal Addition
- $12.75 + 3.25 = 16$
- Adding two decimal numbers is like adding two whole numbers, but you need to align the decimal point.
Decimal Subtraction
- Decimal subtraction involves taking away one decimal number from another.
- For example, $12.75 - 3.25 = 9.5$, this is equivalent to taking away 3.25 units from 12.75 units.
Decimal Multiplication
- The product of $4.2$ and $3.5$ is $14.7$.
- Multiplying two decimal numbers is similar to multiplying two whole numbers, but we count the total number of places after the decimal point.
Decimal Division
- $9.6$ divided by 2 is $4.8$
- Decimal division involves dividing one decimal number by another, similar to dividing whole numbers but the result is a decimal.
Operations and their descriptions
- Sum: The result of adding numbers
- Difference: The outcome of subtracting numbers
- Product: The result of multiplying numbers
- Quotient: The outcome of dividing numbers
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Description
Test your skills in adding, subtracting, multiplying, and dividing multi-digit decimals using various algorithms, including the standard algorithm for each operation. This quiz will help reinforce your understanding of decimal operations and improve your computational fluency.
