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Find the opposite and absolute value of 13.

Find the opposite and absolute value of 13. What is an opposite? How do you find an opposite? What is absolute value? How do you find it? Opposite: -13 Absolute Value: 13. What is a rational number?. A number that can be expressed as a fraction. What is an irrational number?.

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Find the opposite and absolute value of 13.

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  1. Find the opposite and absolute value of 13. • What is an opposite? How do you find an opposite? • What is absolute value? How do you find it? • Opposite: -13 Absolute Value: 13

  2. What is a rational number? • A number that can be expressed as a fraction.

  3. What is an irrational number? • A number that cannot be expressed by a fraction. • It is a decimal that repeats or does not end.

  4. Identify the irrational number

  5. Order the following rational numbers from least to greatest.

  6. Plot the following rational numbers on a number line.

  7. Identify two numbers on a number line that are between 1.8 and 2.0. • Any number that starts with 1.8 or 1.9 will work. • How many possible answers are there? • An infinite amount.

  8. Give an estimate for the square root of 28.Explain your answer. • The square root of 28 is between 5 and 6 since the square root of 25 is 5 and the square root of 36 is 6. Since 28 is closer to 25 than 36 a good estimate would be between 5.1 and 5.4.

  9. Identify which number set(s) each real number belongs to?

  10. Adding Integers Tune: Row, Row, Row your Boat • Same sign add and keep • Different sign subtract • Keep the sign of the higher number • Then you’ll be exact

  11. Compute the following

  12. Order of OperationsTune: Rise and Shine • Parenthesis, Exponents, Multiply, Divide (Repeat) • Now Add, Subtract from left to right to right • The Order of Operations

  13. Compute the following

  14. Compute the following

  15. Compute the following

  16. Write the following as integers and give the difference between the two integers. • An airplane is flying at 5000 ft above sea level and a submarine is cruising 150ft below sea level. • +5000 and -150

  17. Sean started a checking account with a $200 deposit, but before his next paycheck he withdrew $30, $20, and $40. On his next paycheck he deposited another $200. • What is the current balance of his account? • Is he successfully saving money? $310 Yes, his balance is increasing

  18. Which property is being illustrated?-17x1=-17 • Commutative Property of Addition • Commutative Property of Multiplication • Associative Property of Addition • Associative Property of Multiplication • Additive Inverse Property • Multiplicative Inverse Property • Identity Property of Multiplication • Distributive Property

  19. Which property is being illustrated?10+12=12+10 • Commutative Property of Addition • Commutative Property of Multiplication • Associative Property of Addition • Associative Property of Multiplication • Additive Inverse Property • Multiplicative Inverse Property • Identity Property of Multiplication • Distributive Property

  20. Which property is being illustrated?-2(3)(4)=3(-2)(4) • Commutative Property of Addition • Commutative Property of Multiplication • Associative Property of Addition • Associative Property of Multiplication • Additive Inverse Property • Multiplicative Inverse Property • Identity Property of Multiplication • Distributive Property

  21. Which property is being illustrated?-2(3x+4)=6x-8 • Commutative Property of Addition • Commutative Property of Multiplication • Associative Property of Addition • Associative Property of Multiplication • Additive Inverse Property • Multiplicative Inverse Property • Identity Property of Multiplication • Distributive Property

  22. Find the error in the problem below. • -3(4-5)+6 =-12-15+6 =-27+6 =-21 -12+15+6 since -3 times -5 is positive 15. Remember that the negative 3 gets distributed to both terms inside the ().

  23. Taylor babysat twice this weekend. On Friday night she babysat for 4 hours and on Saturday she babysat for 3 hours. If she makes $6 an hour babysitting how much money did she make?How can you solve this problem with the distributive property? $42 6(3+4) =18+24=$42

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