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Big Ideas Math: Modeling Real Life, Grade 8
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Big Ideas Math: Modeling Real Life, Grade 8 View details
1. Finding Square Roots
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Exercise 20 Page 376

Remember the order of operations.

- 12

Practice makes perfect
To evaluate the given numeric expression, we need to remember the order of operations. The acronym PEMDAS can help with that!
pemdas
Let's now consider our expression.

- 1 - sqrt(121) We first need to calculate the square root. Because we know that 11^2=121, we know that sqrt(121)=11. - 1-sqrt(121) calculate root ⟶ - 1-11 Now we can finish evaluating our expression by subtracting the remaining terms. - 1-11 ⇔ - 12

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