Find the area of each square. Each grid square represents 1 square unit.

Square A, side length = square root of 17.Square B, side length = square root of 20.Square C, side length = square root of 13. Square D, side length = square root of 37.

Find the area of a square if its side length is:

1. 3 inches.
2. 7 units.
3. 100 centimeters.
4. 40 inches.
5. units.

What is the value of  ?

Noah reads the problem, “Evaluate each expression and give the answer in scientific notation.” The first problem part is: .

Noah says, “I can rewrite as . Now I can add the numbers: .”

Do you agree with Noah’s solution to the problem? Explain your reasoning.

Select all the expressions that are equivalent to .