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Big Ideas Math: Modeling Real Life, Grade 6

BI

Big Ideas Math: Modeling Real Life, Grade 6 View details

3. Prime Factorization

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Exercise 2 Page 19

Pay close attention to the order of operations.

44

Practice makes perfect

According to the order of operations, expressions inside parentheses are evaluated first, followed by exponents, then multiplication and division, and finally addition and subtraction are evaluated last.

2^3+4* 3^2 For the given expression, this means evaluating the exponents first, then the multiplication, and finally the addition. Let's do it!

Operation	Before Simplification	After Simplification
Calculate powers	2^3+4* 3^2	8+4 * 9
Multiply	8+ 4 * 9	8+ 36
Add terms	8+ 36	44

The expression is equal to 44.

Alternative Solution

Using a Calculator

We can also evaluate this expression using a calculator. To do so, we type it as shown below.

Subchapter links

Try It p.16-17

Self-Assessment for Concepts & Skills p.17

Self-Assessment for Problem Solving p.18

Review & Refresh p.19

Concepts, Skills, & Problem Solving p.19-20