Flashcard Review for 3-3

Front

What is the order of operations in mathematics?

Back

The order of operations is a set of rules that determines the sequence in which calculations are performed. The acronym PEMDAS helps remember the order: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

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Back

The result is 23. First, perform multiplication: 4 x 6 = 24, then addition and subtraction: 3 + 24 - 4 = 23.

Front

What does the absolute value of a number represent?

Back

The absolute value of a number is its distance from zero on the number line, regardless of direction. For example, |0| = 0.

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Back

First, solve the expression in parentheses: 6 - 3 = 3. Then multiply: 5 x 3 = 15.

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Back

The result is 9. First, calculate inside the parentheses: 7 + 41 = 48. Then divide by 2: 48 ÷ 2 = 24. Finally, subtract: 24 - 15 = 9.

Front

What is the difference between 7.9 and 3.47?

Back

The difference is 4.43. Calculate: 7.9 - 3.47 = 4.43.

Front

What is multiplication?

Back

Multiplication is a mathematical operation that represents the repeated addition of a number. For example, 4 x 3 means adding 4 three times: 4 + 4 + 4 = 12.

Front

What is subtraction?

Back

Subtraction is a mathematical operation that represents the removal of one quantity from another. For example, 10 - 4 means taking away 4 from 10, resulting in 6.

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Back

The result is 5. The absolute value of -5 is 5, as it represents the distance from zero.

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Back

The result is 7. First, subtract: 8 - 3 = 5, then add: 5 + 2 = 7.