Unit 4 Decimal Computation
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Learning Outcomes
• Use estimation as a means for checking for reasonableness when computing with decimals • Multiply decimals (through thousandths) • Divide decimals (decimals through thousandths divided by divisors that include one-digit whole numbers or decimals expressed as tenths) • Create and solve single and multistep practical problems involving addition, subtraction, and multiplication of decimals • Create and solve single-step practical problems involving division of decimals • Use multiple representations to model multiplication and division of decimals and whole numbers |
Essential Questions
•How do the strategies we use to compute with whole numbers relate to computing with decimals? • How can estimation and/or benchmark numbers be used to determine the reasonableness of answers? • What representations could be used to improve your efficiency with computing decimals? • How can you use properties to help you compute with decimals mentally? • What questions do you ask yourself when you are solving problems and reflecting on your solutions? |
Unit 4 Vocabulary
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reasonable
estimation quotient product decimal |
expression
tenths Hundredths thousandths decimal |
Estimation |
A tool used to find a near solution. Estimation is used to to pre-check solutions, closely solve equations and plan for real life situations.
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Reasonable |
Estimation must be reasonable, or thoughtful.
Considering the reason for estimation will help you in deciding how "close" an estimate needs to be. |
Quotient |
The solution to a division problem
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Product |
The Solution to a multiplication problem
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Expression |
Numbers, symbols and operators (such as + and ×) grouped together that show the value of something.
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Place Value, thousands, hundreds, tens, ones, tenths, hundredths, thousandths
