Download e-book for kindle: Intermediate Algebra with P.O.W.E.R. Learning by Sherri Messersmith

By Sherri Messersmith

ISBN-10: 0073406279

ISBN-13: 9780073406275

"After having written 5 developmental algebra textbooks, i made a decision to crew up with Larry Perez from Saddleback collage in California to jot down a paperback sequence starting with easy collage Math or mathematics. we all know, first-hand, that educating developmental arithmetic is set a lot more than the maths. this day, a lot of our scholars also are in developmental analyzing and/or writing classes, in order that they do not learn good. Many scholars are terrible note-takers, have no idea how you can read/use a textbook, have negative examine talents, and feature by no means realized time-management abilities. teachers be aware of significant reason behind excessive failure charges in developmental math classes is because of the truth that a lot of our scholars don't know easy methods to be students. they do not are looking to fail, they only have no idea tips to prevail! Larry and i've tailored what we do within the lecture room to attempt to deal with the non-math wishes of our scholars. yet, we puzzled, how will we do that in a textbook? input P.O.W.E.R.. P.O.W.E.R. is a five-step approach to advertise studying and demanding considering. every one step within the process--Prepare, set up, paintings, evaluation, and Rethink--provides scholars with a confirmed framework that may support them in attaining educational luck. P.O.W.E.R. maximizes the good fortune of scholars through the use of a research-based "best practices" method. it's a scientifically-based framework selling scholar good fortune, with each one step within the approach in response to empirical study findings on the topic of scholars' educational functionality in a faculty atmosphere"

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Indd Page 8 01/11/12 5:37 PM user-f502 /207/MH01612/mes06279_disk1of1/0073406279/mes06279_pagefiles INTER— 2 Compare Numbers Using Inequality Symbols Let’s review the inequality symbols. Ͻ less than Յ less than or equal to Ͼ greater than Ն greater than or equal to Ϸ approximately equal to not equal to We use these symbols to compare numbers as in 5 Ͼ 2, 6 Յ 17, 4 How do we compare negative numbers? Think about why ᎐8 is less than ᎐7 on a number line. Draw a number line and notice that ᎐8 is to the left of ᎐7.

That is, if a is a real number, then a ϩ (Ϫa) ϭ 0. Notice in part d) of Example 2 that Ϫ7 and 7 are additive inverses. [YOU TRY 2] Add. 11 ϩ (Ϫ8) a) 2 b) Ϫ17 ϩ (Ϫ5) c) 5 2 Ϫ ϩ 8 3 d) 59 ϩ (Ϫ59) Subtract Real Numbers Subtraction of numbers can be defined in terms of the additive inverse. We’ll begin by looking at a basic subtraction problem. Represent 6 Ϫ 4 on a number line. 0 1 2 3 4 5 6 Start Begin at 6. To subtract 4, move 4 units to the left to get 2: 6 Ϫ 4 ϭ 2. We use the same process to find 6 ϩ (Ϫ4).

8 [YOU TRY 6] Divide. 2 72 Ϫ8 b) c) Ϫ19 Ϫ1 [YOU TRY] EXERCISES b) Ϫ115 5) a) Ϫ16 2) a) 3 b) Ϫ 4 9 Exercises Mixed Exercises: Objectives 1 and 2 1) Explain, in your own words, how to add two negative numbers. 1 d) 0 24 2 6) a) b) Ϫ9 3 b) Ϫ22 c) 24 3) a) Ϫ7 c) b) Ϫ18 c) 11 d) 25 c) 19 Do the exercises, and check your work. 4) Explain, in your own words, how to add two positive numbers. Add or subtract as indicated. 2) Explain, in your own words, how to add a positive and a negative number. 5) 9 ϩ (Ϫ13) 6) Ϫ7 ϩ (Ϫ5) 7) Ϫ2 Ϫ 12 8) Ϫ4 ϩ 11 3) Explain, in your own words, how to subtract two negative numbers.

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Intermediate Algebra with P.O.W.E.R. Learning by Sherri Messersmith

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