Repeat Terminate Number
Download as PPT, PDF1 like268 views
The document is a summary of key concepts from a math textbook chapter on rational numbers and decimals including: 1) Evaluating expressions like 3x-1 and 4(x+3) for values of x. 2) Definitions of terminating and repeating decimals. 0.8 terminates while 0.625 repeats. 3) Using greater than (>), less than (<) and equal to (≤, ≥) symbols to order numbers like -7, -14.8, -14.6, 532,028 and 523,828. 4) The meaning of opposite numbers and using them in equations like -9 + 9 = 0. 5) Defining absolute value
1 of 16
Download to read offline
Repeat Terminate Number
- 1. Unit One Starts with chapter two Pages 54-58a (Then backs up to page 21)
- 2. WARM UP Evaluate the following expressions when x = 2 and x = 3 (two answers for each). 3x – 1 4(x+3)
- 3. WARM UP answers 3x – 1 = 3(2) – 1=5 3(3)-1 = 8 4(x+3) 4(2+3) =20 4(3+3)=24
- 4. Rational Numbers Terminate Repeat
- 5. Let’s look at Terminating decimals The fraction Doing the math 0.8 comes to an end, or terminates
- 6. Try one. Does terminate? 0.625 does not continue past the five (5). It terminates.
- 7. Repeating Decimals Try dividing We read this as point 3 repeating.
- 8. Try One Is a repeating decimal? 5/12 is a repeating decimal
- 9. Which is it? Is a repeating or a terminating decimal? A: repeating decimal
- 10. Greater than or Less than? It’s time to know that > is greater than. < means less than. is equal to or less than. is equal to or less than.
- 11. Order these numbers -7 -14.8 -14.6 532,028 523,828
- 12. Order numbers answers 3 > -7 -14.8 < -14.6 532,028 > 523,828
- 13. Opposite numbers -3 is the opposite of +3 -15 is the opposite of +15 +7.5 is the opposite of -7.5 What do you get when you add two opposites numbers? -9 + 9 = 0
- 14. Absolute Value The answer to numbers inside absolute value signs is always positive. What does Absolute Value Not mean? Absolute value is NOT opposite.
- 15. Try some. | -5 + 7 | = | -6 + -15 | = 3 - |-4 + -5| = +2 +21 -6 ( order of operations is used) 3 – (+9)
- 16. Go Tigers