Order of Operations

What is the first priority in the order of operations?

• Addition

• Subtraction

• Multiplication

• Parentheses

Answer explanation

The first priority in the order of operations is parentheses. The order of operations follows the PEMDAS rule, which stands for Parentheses/Exponents/ Multiplication or Division, and Addition or Subtraction. This rule ensures that mathematical expressions are solved consistently and accurately. Since parentheses come first in this sequence, they have the highest priority.

Tags

CCSS.7.EE.B.3

In the expression 9 + 11 - 4 x 2, what is the second step?

• multiply

• subtract

• divide

• add

Answer explanation

In the question's expression, the order of operations (PEMDAS) is followed. This means the multiplication operation is done first, then addition/subtraction from left to right. Here, 4 x 2 is the first step. The second step is 9 + 11, which means the correct answer is 'add'.

Tags

CCSS.5.OA.A.1

CCSS.5.OA.A.2

Simplify the expression 3(7 - 2).

• 5

• 10

• 15

• 21

Answer explanation

The question asks to simplify the expression 3 x (7 - 2). To do this, we first perform the operation inside the parentheses, which is subtraction, giving us 5. Then, we multiply this result by 3, yielding 15 as the correct answer.

Tags

CCSS.5.OA.A.1

CCSS.5.OA.A.2

What order do you solve multiplication and division?

• left to right whichever is first

• right to left whichever is first

• right whichever is first

• there is no order

Answer explanation

In mathematics, the order of operations for multiplication and division is from left to right. This means you solve the equation in the order it is given, from left to right. So, the correct answer to the question is 'left to right whichever is first'.

Tags

CCSS.5.NBT.B.7

Evaluate the expression 17 - 6 + 3 ∙ 5.

• 15

• 20

• 26

• 32

Answer explanation

In the given question, the expression is 17 - 6 + 3 x 5. According to the order of operations (PEMDAS), multiplication should be performed before subtraction and addition. So, first multiply 3 and 5 to get 15, then subtract 6 from 17 to get 11. Finally, add the results, 15 and 11, to get 26. Thus, the correct choice is 26.

Tags

CCSS.5.OA.A.1

CCSS.5.OA.A.2

Evaluate the expression 12 - 10 ÷ 2 + 16 - 9.

• 7

• 9

• 14

• 18

Answer explanation

In the given question, we need to calculate the result of the expression 12 - 10 ÷ 2 + 16 - 9. By following the order of operations (PEMDAS), first, we perform the division: 10 ÷ 2 = 5. Then, we proceed with the other operations: 12 - 5 + 16 - 9 = 7 + 16 - 9 = 23 - 9 = 14. The correct answer is 14.

Tags

CCSS.5.OA.A.1

CCSS.5.OA.A.2

Which operations are solved from left to right, whichever comes first? Select all correct answers.

• Addition

• Subtraction

• Parentheses

• Division

Answer explanation

In mathematics, addition and subtraction operations are solved from left to right, whichever comes first. This follows the order of operations (PEMDAS), which prioritizes parentheses, exponents, multiplication, and division before addressing addition and subtraction.

Tags

CCSS.5.OA.A.1

CCSS.5.OA.A.2

Evaluate the expression 12 - 5 + 7.

• 7

• 12

• 14

• 19

Answer explanation

The question asks to evaluate the expression 12 - 5 + 7. First, subtract 5 from 12, which equals 7. Then, add 7 to the result, which equals 14. Hence, the correct answer is 14.

Tags

CCSS.5.OA.A.1

CCSS.5.OA.A.2

Which operation is solved first in the expression 12 - 5 + 7?

• Subtraction

• Addition

• Multiplication

• Division

Answer explanation

In the given expression 12 - 5 + 7, we need to follow the order of operations. Since there are no parentheses, exponents, multiplication, or division, we simply perform the operations from left to right. So, subtraction comes first, followed by addition. However, the correct answer provided is 'Addition'. It appears there is an error in the provided answer.

Tags

CCSS.5.OA.A.1

CCSS.5.OA.A.2