In this unit, students will build on their understanding of decimals by working with numbers that include decimals in tenths, hundredths and thousandths place. Adding, subtracting and rounding with decimals will enable them to apply the strategies in new ways and enhance their understanding of the base-ten number system.
Empower your students with the opportunity to design decimal subtraction problems with a given difference (answer). Use this lesson on its own or as support for the lesson Step By Step Decimal Subtraction.
Subtracting Decimals: Presidential Problems at the Pizza Place
Students will practice subtracting decimal numbers by calculating the total of prominent political figures’ meals at a pizzeria. Then, students can create and solve their own word problems using the menu on the activity.
Comparing Batting Averages: Subtracting to the Thousandths
Subtracting decimals to the thousandths can be fun when you are using actual statistics from Major League Baseball. Students will learn a little about how averages are calculated and then compare statistics of some of baseball's top players.