Word names for decimals

Learning Objectives Identify the tenths and hundredths place value. Read a decimal number aloud using its proper word name. Write the word name for a decimal number written in standard form (e.g., 2.5). Write a decimal number in standard form when given its word name (e.g., 'three and seven tenths'). Correctly use the word 'and' to represent the decimal point. Connect a decimal's word name to its meaning as parts of a whole. Have you ever seen a price tag that says $2.50? How do we say that number out loud? Let's find out! 💰 Today, we will learn the special way to read and write numbers that have a decimal point. This is important because it helps us talk about parts of a whole, like parts of a dollar or parts of a pizza. Real-World Applicati...

TermDefinitionExample Decimal PointA dot used to separate the whole number part from the part that is less than one.In the number 7.4, the dot between the 7 and the 4 is the decimal point. DecimalA number that uses a decimal point to show a value that is a whole number and/or parts of a whole.3.8, 0.25, and 12.09 are all decimals. Whole Number PartThe digit or digits to the left of the decimal point.In 12.95, the whole number part is 12. Decimal PartThe digit or digits to the right of the decimal point.In 12.95, the decimal part is 95. TenthsThe first place value to the right of the decimal point. It means a part of a whole that is split into 10 equal pieces.In 0.1, the 1 is in the tenths place. It means one-tenth. HundredthsThe second place value to the right of the decimal point. It mea...

Reading Decimals Rule (\text{Whole Number}) \rightarrow \text{'and'} \rightarrow (\text{Decimal Part}) \rightarrow (\text{Place Value Name}) To read a decimal, say the whole number, say 'and' for the decimal point, say the number in the decimal part, and finish with the place value name of the very last digit. Writing Decimals Rule \text{'Word before and'} \rightarrow . \rightarrow \text{'Word after and'} To write a decimal from words, write the number that comes before 'and'. The word 'and' tells you where to put the decimal point. Then, write the number that comes after 'and', making sure the last digit ends in the correct place value spot.