MEDIUM LEVEL

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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CCSS.7.NS.A.3

Front

What does it mean to simplify an expression?

Back

To simplify an expression means to reduce it to its simplest form by performing operations and combining like terms.

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CCSS.7.EE.A.1

Front

What is a negative number?

Back

A negative number is a number that is less than zero, often used to represent a loss or a decrease.

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CCSS.6.NS.C.5

Front

What is the result of subtracting a larger number from a smaller number?

Back

The result is a negative number.

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CCSS.7.NS.A.1C

Front

What is multiplication of two negative numbers?

Back

The multiplication of two negative numbers results in a positive number.

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CCSS.7.NS.A.2B

CCSS.7.NS.A.2A

Front

What is the result of -3(-5)?

Back

The result is 15, because multiplying two negative numbers gives a positive result.

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CCSS.7.NS.A.2B

CCSS.7.NS.A.2A

Front

What is the result of -42 ÷ (-6)?

Back

The result is 7, because dividing two negative numbers gives a positive result.

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CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

Front

What is the significance of parentheses in mathematical expressions?

Back

Parentheses indicate which operations should be performed first in an expression.

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CCSS.5.OA.A.1

CCSS.5.OA.A.2

Front

What is the result of 5 - 3 + 2?

Back

The result is 4, but according to the order of operations, you should subtract first: 5 - 3 = 2, then 2 + 2 = 4.

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CCSS.5.OA.A.1

CCSS.5.OA.A.2

Front

What is the result of -24 - 10 x 4?

Back

The result is -64, because you must perform multiplication before subtraction: -24 - 40 = -64.

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CCSS.7.NS.A.3