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Recap: Number Stories

Part of the Numbers & Operations section of Coddy's Pre-Algebra journey. Lesson 55 of 60.

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Challenge

At 6 pm the temperature is 7 degrees. It drops 3 degrees every hour for 5 hours. Find the temperature t at 11 pm.

Start the lesson to read it in the interactive player and track your progress.

All lessons in Numbers & Operations

1Working on the Board

Your First AnswerType the Next LineOne Line at a TimeDots and BarsFriendly ProductsRecap: Board Work

4Adding Integers

Adding Two NegativesDifferent SignsZero PairsAdding Several IntegersRecap: Adding Integers

7Exponents

Repeated MultiplicationSquares and CubesPowers of TenNegative BasesWhere the Minus SitsRecap: Exponents

10Numbers in Stories

Temperature ChangesMoney OwedUp and DownEqual SharesRecap: Number Stories

2Order of Operations

Multiply Before AddingLeft to RightParentheses FirstBrackets Inside BracketsThe Fraction Bar GroupsRecap: Order of Operations

5Subtracting Integers

Add the OppositeSubtracting a NegativePlus and Minus in a RowDistance Between NumbersRecap: Subtracting Integers

8Square Roots

Perfect SquaresUndoing a SquareRoots in ExpressionsThe Root Sign GroupsBetween Two Whole NumbersRecap: Square Roots

11Final Challenges

Final: Every Rule at OnceFinal: Roots and PowersFinal: The FreezerFinal: Over the BarFinal: On the Line

3Negative Numbers

Below ZeroOppositesGreater or LessAbsolute ValueRecap: The Number Line

6Multiplying and Dividing

Negative Times PositiveTwo NegativesCounting the NegativesDividing IntegersZero in DivisionRecap: Multiply and Divide

9Putting It All Together

Powers Before ProductsNegatives InsideNegative Bases in SumsEverything at OnceRecap: The Full Order