Evaluate Expressions with Grouping Symbols

Using the steps shown, Heather tried to simplify this expression. What was her first mistake?

• Step 1

• Step 2

• Step 3

• Step 4

Tags

CCSS.5.OA.A.1

CCSS.5.OA.A.2

Solve.

• 96

• 137

• 145

• 280

Tags

CCSS.7.NS.A.3

Evaluate: 6 - (4 - 7) - (-9)

Mathematical Equivalence

ON

Tags

CCSS.7.NS.A.3

Evaluate: -4 + (3 - 7) + 8

Mathematical Equivalence

ON

Tags

CCSS.7.NS.A.3

Evaluate: 2 - (7 + 41) – 15

Mathematical Equivalence

ON

Tags

CCSS.7.NS.A.3

Evaluate: -4 - (2 - 3) - (-5)

Mathematical Equivalence

ON

Tags

CCSS.7.NS.A.3

Evaluate: -3 × (10 × 2) - 1

Mathematical Equivalence

ON

Tags

CCSS.7.NS.A.3

Evaluate: (-10 - 2) - (1 + 7)

Mathematical Equivalence

ON

Tags

CCSS.7.NS.A.1D

Find the value of the expression.

• -12

• 12

• 14

• -14

Tags

CCSS.7.NS.A.3

Evaluate. 5 x [16 -(4+2)] ÷ 2

• 20

• 25

• 35

• 40

Tags

CCSS.7.NS.A.3