Rounding Decimals Explained

The video tutorial covers the concept of rounding numbers, including those with decimals. It explains the importance of rounding in simplifying numbers for practical use, such as estimating costs. The tutorial reviews number places and demonstrates how to round numbers to the nearest whole number, tenth, and hundredth. It provides examples to illustrate the process and concludes with encouragement to review the material for better understanding.

What is the primary purpose of rounding numbers?

• To increase the number of decimals

• To make calculations more complex

• To generalize or abbreviate numbers

• To make numbers more precise

If you bought a TV for $499.99, how would you round this amount to the nearest whole number?

• $499

• $499.99

• $500

• $499.9

Which place is immediately to the right of the decimal point?

• Thousandths

• Ones

• Hundredths

• Tenths

In the number 530.8638293, which digit is in the hundredths place?

• 9

• 6

• 8

• 3

When rounding 32.7 to the nearest whole number, what is the result?

• 30

• 32.7

• 33

• 32

If the digit to the right of the rounding place is between 0 and 4, what happens to the rounding digit?

• It goes up by 1

• It stays the same

• It becomes zero

• It goes down by 1

How would you round 237.58 to the nearest tenth?

• 237.5

• 237.6

• 238

• 237.58

What is the result of rounding 849.214 to the nearest hundredth?

• 849.21

• 849.22

• 849.2

• 849.214

When rounding 849.96 to the nearest whole number, what is the result?

• 849.96

• 849.9

• 849

• 850

What happens when you round the number 49.9 up by one?

• It becomes 49

• It becomes 51

• It becomes 49.1

• It becomes 50