Multiplication and Decimal Placement

The video tutorial explains how to multiply 128.1855 by 4, focusing on the process of long multiplication. It emphasizes the importance of counting the digits after the decimal point in the original numbers to correctly place the decimal in the final answer. The tutorial concludes by rounding the result to the nearest 100th, resulting in the final answer of 51542.

What are the two numbers being multiplied in the problem?

• 128.1855 and 3

• 128.1855 and 5

• 128.1855 and 4

• 128.1855 and 2

What is the first step in the multiplication process described?

• Multiply 5 by 2

• Multiply 5 by 5

• Multiply 5 by 4

• Multiply 5 by 3

How many digits after the decimal point are there in the original number 128.1855?

• Four

• Three

• Five

• Two

Where should the decimal point be placed in the final answer?

• Between the second and third digit

• Between the fifth and sixth digit

• Between the first and second digit

• Between the third and fourth digit

What is the final rounded answer to the multiplication problem?

• 51500

• 51540

• 51000

• 51542