Algebra Spring 2000

Year-LongAlgebra Spring 2000, Azzolino

1. There exist many ways to say the same thing.: a.) The set of all numbers such that the number is greater than 2.; b.) {x | x > 2} c.) d.)
2. Write the following in words. Graph it.: a.) {x | x > -1 and x < 3}; a.) this is also {x | -1 < x < 3}; The symbols [ and ] indicate to include the endpoint.; The symobls ( and ) indicate the endpoint is not included.
3. Vocabulary The Decimal Bakery set integers: number line multiples is greater than
4. Homework in Chapter 1 section 6.
5. Quiz on signed number computation on Monday.
6. TEST on Chapter 1 on Tuesday.

I. Simplify
1. (18 ÷ 2) · {[9 · 9 - 1 ÷ 2] - [5 · 20 - ( 7 · 9 - 2)]} For answers to above, scroll down. (18 ÷ 2) · {[9 · 9 - 1 ÷ 2] - [5 · 20 - ( 7 · 9 - 2)]} 9 · {[81 - 1/2] - [100 - ( 63 - 2)]} 9 · {[80 1/2] - [100 - ( 61)]} 9 · {[80 1/2] - [ 39 ]} 9 · { 41 1/2} 373 1/2
2. 8(-4)(-1)(-2)
For answers to above, scroll down. 8(-4)(-1)(-2) -64
3. 8(-4) -1 -2
For answers to above, scroll down. 8(-4) -1 -2 -32 - 1 - 2 -35
4. 8(-4 -1(-2))
For answers to above, scroll down. 8(-4 -1(2)) 8(-4 - 2) 8(- 6) -48
5. -6 [ -3 - 2(5 - 3)]
For answers to above, scroll down. -6 [ -3 - 2(5 - 3)] -6 [ -3 - 2( 2)] -6 [ -3 - 4] -6 [ - 7] 42
II. The 9 Times Tables on Your Fingers

http://www.mathnstuff.com/math/oh13/notes/notes1l.htm Revised: 2/16/00