Exploring Decimal and Whole Number Operations

This video tutorial covers Saxon Math Lesson 38, focusing on adding and subtracting decimal and whole numbers, as well as understanding squares and square roots. The lesson includes explanations of decimal notation, methods for aligning decimal points in arithmetic operations, and the concept of perfect squares. The video concludes with a series of practice problems to reinforce the concepts taught.

Which of the following is NOT a way to write three dollars?

• 3

• 3.00

• 3.0

• 3.000

When adding decimal numbers, what is the most important step?

• Aligning the decimal points

• Ignoring the decimal points

• Subtracting the digits first

• Adding the digits randomly

What is the perimeter of a sheet of paper that is 11 inches long and 8.5 inches wide?

• 38 inches

• 37 inches

• 39 inches

• 40 inches

What is the area of a square with sides that are 5 centimeters long?

• 20 cm²

• 25 cm²

• 30 cm²

• 15 cm²

What does the exponent 2 indicate in the expression 5²?

• 5 is multiplied by 2

• 5 is added to 2

• 5 is used as a factor twice

• 5 is subtracted by 2

What is the square root of 36?

• 5

• 6

• 7

• 8

Which of the following is a perfect square?

• 20

• 25

• 30

• 35

What is the square root of 64?

• 9

• 8

• 7

• 6

What is the result of 6² + 8²?

• 64

• 72

• 100

• 144

What are the next four perfect squares after 1, 4, 9, and 16?

• 26, 37, 50, 65

• 24, 36, 48, 60

• 25, 36, 49, 64

• 20, 25, 30, 35