Understanding Decimal Notation and Place Values

The video tutorial explains how to read and write numbers in decimal notation using a place value chart. It covers rules for hyphenating numbers between 21 and 99, using commas to separate thousands, and using 'and' for decimal points. Examples are provided to illustrate these rules, including detailed breakdowns of numbers into their respective place values. The tutorial concludes with a summary of the key points discussed.

What is the purpose of a place value chart in decimal notation?

• To simplify complex calculations

• To convert numbers into fractions

• To determine the value of each digit based on its position

• To identify the number of digits in a number

When should you hyphenate numbers in decimal notation?

• Between the tens and ones place for numbers 21-29, 31-39, etc.

• Between the thousands and millions place

• Between the hundreds and thousands place

• Between the tenths and hundredths place

How are commas used in writing numbers?

• To separate every three digits to the left of the decimal point

• To indicate a decimal point

• To separate every two digits

• To separate the decimal point from the whole number

What word is used to represent the decimal point when writing numbers in words?

• With

• But

• Or

• And

Which of the following is a correct example of using 'and' in decimal notation?

• 2 and 3/10

• 100 and 200

• 45 and 78

• 12,453 and 67

How would you write the number 18.2 in words?

• Eighteen two

• Eighteen and two

• Eighteen point two

• Eighteen and two tenths

In the number 2,371.54, what is the place value of the digit 4?

• Thousandths

• Ones

• Hundredths

• Tenths

How should the number 71 be written when it appears in a larger number?

• Seventy one

• Seventy-one

• Seventy and one

• Seventyone

What is the correct way to write 56.037 in words?

• Fifty-six and thirty-seven

• Fifty-six and three hundred seventy

• Fifty-six point zero three seven

• Fifty-six and thirty-seven thousandths

What is the place value of the digit 5 in the number 56.037?

• Hundredths

• Tens

• Ones

• Tenths