Order of Operations Parentheses and Brackets

8 + (15 - 4) x 2 - 10 ÷ 5

• 28

• 30

• 14

• 17

[(12 ÷ 2) - 4] + (8 x 2)

• 20

• 17

• 16

• 18

2 + [(20 - 13) x 5] ÷ (4 + 3)

• 5

• 6

• 7

• 8

2 + [20 - (9 x 2)]

• 1

• 22

• 4

• 6

Solve the following:

33 + [16 - (8 - 3)]

• 34

• 29

• 44

• 28

What is the value of the expression

3(8 - 2)?

• 36

• 18

• 30

• 24

Lara said the value of [18 − (2 × 5)] + (30 × 2) is 68. David said the value of [ (18 − 2) × 5] + (30 × 2) is 140. Which sentence explains why Lara and David found different values for the expressions? Laura dijo que el valor de [18 − (2 × 5)] + (30 × 2) es 68. David dijo que el valor de [ (18 − 2) × 5] + (30 × 2) es 140. ¿Cuál oración explica por qué Laura y David encontraron diferentes valores para las expresiones?

• Lara multiplied first, but she should have subtracted because the subtraction is before the multiplication.

• Both answers are correct because the grouping symbols change the order in which the operations are performed.

• David found the wrong answer because he did not pay attention to the parentheses and brackets.

• Both answers are incorrect because it is not possible to have 3 operations in the same expression.

Tags

5.4.E

What is the value of the expression

8(6 + 2)?

• 72

• 87

• 88

• 64

An expression is shown below.

28[ 12-6 (9-4)] + 8

Which statement about the parentheses or brackets in this expression is true?

• Brackets indicate that 28 times 12 should be solved first.

• Parentheses indicate the difference of 9 and 4 should be solved first.

• Brackets indicate that 6 less than 12 should be solved first.

• Parentheses indicate that 6 times 9 should be solved first.

Which statement is true about the parentheses in this expression?