Lesson 21 | Multiplication and Division of Decimals | 5th Grade Mathematics

Objective

Express measurements in a whole number of smaller units in terms of a larger unit.

Lesson Map

Topic A: Multiplying Decimals

Multiply a single-digit whole number by a decimal in cases that involve basic facts. Estimate the product of a single-digit whole number and a decimal by rounding numbers to their largest place.

Standards

5.NBT.B.7

Lesson

Multiply a single-digit whole number by a decimal.

Standards

5.NBT.B.7

Lesson

Construct viable arguments and critique the reasoning of others regarding the placement of the decimal point in computations that involve multiplying a whole number by a decimal.

Standards

5.NBT.B.7

Lesson

Multiply a whole number by a decimal, reasoning about the placement of the decimal point.

Standards

5.NBT.B.7

Lesson

Multiply a decimal by a decimal in cases that involve basic facts. Estimate the product of two decimals by rounding numbers to their largest place.

Standards

5.NBT.B.7

Lesson

Multiply a decimal by a decimal, reasoning about the placement of the decimal point.

Standards

5.NBT.B.7

Lesson

Multiply with decimals in all cases, seeing the general pattern for the placement of the decimal point in the product.

Standards

5.NBT.B.7

Topic B: Dividing Decimals

Lesson

Divide a decimal by a single-digit whole number in cases that involve basic facts. Estimate quotients of decimal dividends and single-digit whole number divisors by rounding numbers to compatible numbers.

Standards

5.NBT.B.7

Lesson

Divide a decimal by a single-digit whole number.

Standards

5.NBT.B.7

Lesson

Divide a decimal by a single-digit whole number that requires decomposition in the smallest place.

Standards

5.NBT.B.7

Lesson

Divide a decimal by a two-digit whole number.

Standards

5.NBT.B.7

Lesson

Divide a decimal by a two-digit whole number that requires decomposition in the smallest place.

Standards

5.NBT.B.7

Lesson

Divide a whole number or a decimal by 1 tenth or 1 hundredth.

Standards

5.NBT.B.7

Lesson

Divide a whole number or a decimal by a decimal in cases that involve basic facts. Estimate quotients with decimal divisors by rounding numbers to compatible numbers.

Standards

5.NBT.B.7

Lesson

Divide a whole number or a decimal by a decimal.

Standards

5.NBT.B.7

Lesson

Divide with decimals in all cases, seeing the general pattern for the placement of the decimal point in the quotient.

Standards

5.NBT.B.7