Combined Operations with Powers

Try these questions

5 questions from this lesson’s quiz. Start the lesson to answer them and see the right answers.

1. 1. What is the value of \sqrt{36} + 4^2 - 5?

   • A. 17
   • B. 27
   • C. 11
   • D. 47

2. 2. Evaluate: (15 - \sqrt{81})^2 + \sqrt{64} \div 2

   Type your answer in the lesson.

3. 3. Which statement about \sqrt{9 + 16} and \sqrt{9} + \sqrt{16} is correct?

   • A. \sqrt{9 + 16} = 5 and \sqrt{9} + \sqrt{16} = 7, so they are not equal
   • B. Both expressions are equal to 7
   • C. Both expressions are equal to 5
   • D. \sqrt{9 + 16} = 7 and \sqrt{9} + \sqrt{16} = 5

4. 4. What one-word term means the rule that decides which operation must be done first in a calculation?

   Type your answer in the lesson.

5. 5. Wanjiku squares the sum of 3 and 5, and then subtracts the square root of 49 from the result. What number does she get?

   Type your answer in the lesson.

More in Whole Numbers

• ▸Concept of Square Roots of Numbers
• ▸Determining Square Roots Using Factor Trees
• ▸Square Roots of Perfect Squares up to 1,000
• ▸Square Roots of Perfect Squares up to 10,000
• ▸Digital Games and Problem Solving with Whole Numbers
• ▸Review of Whole Numbers
• ▸Mental Multiplication Strategies and Fact Families
• ▸Multiplication using Expanded Form and the Grid Method

See every Grade 6 Mathematics lesson →