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6.3 Decimals
Unit Review
Term | Definition |
---|---|
Decimal | A number with a decimal point, represented by the period. *Note: whole numbers have an implied decimal after the number ex. 4 = 4. |
Place Value | The value of where the digit is in the number. |
Add Decimals | -Line up the decimals vertically (up and down)- tf there is no decimal, it is assumed to be at the end. Ex. 6 = 6. -Fill in any blank spots with 0's -Add (remember to regroup if needed) -Bring down the decimal |
Sum | Answer to an addition problem |
Adding decimals example word problems | 1. Buying multiple items and finding the total cost 2. Finding the perimeter of an object |
Subtract decimals | -Line up the decimals vertically (up and down)- tf there is no decimal, it is assumed to be at the end. Ex. 6 = 6. -Fill in any blank spots with 0's -Subtract (remember to regroup if needed) -Bring down the decimal |
Difference | Answer to a subtraction problem |
Subtracting decimal example word problems | 1. Find the DIFFERENCE 2. How much change would you get or how much is left? 3. Finding the part when given the total and one part. |
Multiply decimals | -DO NOT Line up the decimals. Line the numbers up on the right. -Multiply. -Count the number of decimal places in both numbers in the original problem. This is the number of places in your answer. |
Multiplying decimals word problem examples | 1. Buying/using more than one of an item |
Product | Answer to a multiplication problem |
divide decimals | -Write in standard form (top in box) -Bring Decimal Up on answer line -Divide (Does McDonalds Sell Cheeseburgers) - Annex 0's if there is a remainder |
Quotient | Answer to a division problem |
Dividing decimal word problem examples | 1. Splitting or sharing equally 2. Finding the part when given the total and one part |