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5.NBT.A.2 - Explain by powers of 10, and explain patterns in the placement in patterns in the number of zeros of the product when multiplying a number by powers of 10, and explain patterns in the placement of the decimal point when a decimal is multiplied or divided by a power of 10. Use whole-number exponents to denote powers of 10.
5.NBT.B.7 - Add, subtract, multiply, and divide decimals to hundredths, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used.
Click on the Quizlet button to access the vocabulary words that you will need to know in Chapter Four
Chapter Four
Chapter Four
decimal - a number with one or more digits to the right of the decimal point
expanded form - a way to write a number that shows the value of each digit
hundredths - one of one hundred equal parts
pattern - a repeating sequence that follows a rule that repeats
place value - the value of a digit in a number based on the location of the digit
product - the result when you multiply two numbers
standard form - a number written with one digit for each place value
tenths - one of ten equal parts
thousandths - one of one thousand equal parts
Lesson 4.1 - Algebra: Multiplication Patterns with Decimals
Students will find patterns in products when multiplying by powers of 10.
IXL Practice (click on the links below)
Multiply a decimal by a power of ten
Multiply by a power of ten with decimals: find the missing number
Lesson 4.2 - Investigate: Multiply Decimals and Whole Numbers
Students will model multiplication of whole numbers and decimals.
IXL Practice (click on the links below)
Multiply a decimal by a one-digit whole number using blocks
Lesson 4.3 - Multiplication with Decimals and Whole Numbers
Students will multiply a decimal and a whole number using properties and place value.
IXL Practice (click on the links below)
Multiply a decimal by a one-digit whole number using the distributive property
Lesson 4.4. - Multiply Using Expanded Form
Students will use expanded form and place value to multiply a decimal and a whole number.
Lesson 4.5 - Problem Solving: Multiply Money
Students will solve problems using the strategy draw a diagram to multiply money.
IXL Practice (click on the links below)
Multiply money amounts: word problems
Lesson 4.6 - Investigate Decimal Multiplication
Students will model multiplication of decimals.
IXL Practice (click on the links below)
Multiply decimals by a one-digit whole number using blocks
Multiply a decimal by a two-digit whole number using area models
Complete the decimal multiplication sentence using grids
Lesson 4.7 - Multiply Decimals
Students will place the decimal point in decimal multiplication.
IXL Practice (click on the links below)
Multiply two decimals: where does the decimal point go?
Multiply two decimals: products up to hundredths
Multiply two decimals: products up to thousandths
Lesson 4.8 - Zeros in the Products
Students will multiple decimals with zeros in the product.
IXL Practice (click on the links below)
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