Mrs. Cav - Unit 5: Place Value & Decimal Operations

In this unit, students will be able to read, write, and compare decimals to thousandths (5.NBT.A.3). Students will be able to use place value understanding to round decimals to any place (5.NBT.A.4).

Compare, Round, Expand Decimals

Students will add and subtract decimals to the hundredths (5.NBT.7).

Adding and Subtracting Decimals

Adding decimals: 9.087+15.31 (video) | Khan AcademySal solves 9.087+15.31 using the "standard algorithm".

Subtracting decimals: 9.57-8.09 (video) | Khan AcademySal subtracts 9.57-8.09 using "standard algorithm".

Students will multiply and divide decimals to the hundredths place using various strategies (5.NBT.B7).

Multiplying decimals example (video) | Khan AcademyTo multiply decimals, first multiply as if there is no decimal. Next, count the number of digits after the decimal in each factor. Finally, put the same number of digits behind the decimal in the product. For example, if we multiply 7.61✕9.2, we will have 3 digits behind the decimal in our product because there are 3 digits behind the decimals in the factors.

Multiplying Decimals - Google Docs.webm

Divide Decimals - Google Docs.webm

Divide Decimals - Google Docs.webm

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