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Big Ideas Math: Modeling Real Life, Grade 7
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Big Ideas Math: Modeling Real Life, Grade 7 View details
2. Dividing Integers
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Exercise 32 Page 60

Pay close attention to the order of operations.

- 10

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. We can use the acronym PEMDAS to help us remember the correct order!

pemdas
For the given expression, we should first calculate the quotient before finally subtracting and adding from left to right. - 8-14÷ 2+5 Let's do it!

Operation Before Simplification After Simplification
Divide - 8- 14÷ 2+5 - 8- 7+5
Add and Subtract - 8- 7+ 5 - 10

The expression is equal to - 10.

Alternative Solution

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

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arrow_right Self-Assessment for Problem Solving p.58
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