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Chapter 1: Q30. (page 64)

Evaluate each expression using properties of numbers. Name the property used in each step.

16-42+9

Short Answer

Expert verified

The value of the given expression is 9.

Step by step solution

01

Step 1. Method of applying the order of operations.

  1. Evaluate expressions inside grouping symbols.
  2. Evaluate all powers.
  3. Multiply and/or divide in order from left to right.
  4. Add or subtract in order from left to right.
02

Step 2. Evaluating the expression.

16-42+9=16-16+9Substitution=0+9Substitution

03

Step 3. Simplifying the expression.

0+9=9Additiveidentity

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