6.4 Operations with Decimals
Remember to Silence Your Cell Phone and Put It In Your Bag!
Addition and Subtraction of Rational Numbers in
Decimal Form
Modeling – Base Ten BlocksPlace-Value ChartStandard Algorithm
Multiplication of Rational Numbers in Decimal Form
When multiplying decimals why do you put the decimal point in the product where you do?
Traditional Algorithm
Dividing Rational Numbers in Decimal Form
Review the procedure for dividing rational numbers in decimal form on p. 349.
Use estimation to determine whether an answer obtained by dividing decimals is reasonable.
Verify your answer by multiplying the quotient by the divisor. The product must be the same as the dividend.
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