1 / 13

Quick Start Expectations

Quick Start Expectations. Pick up a new HWRS and fill in: HW: p. 66-74 #14, 15, 19-24 (read the directions!) Get a signature on your HWRS (no correction needed-power down) On desk: math journal, HWRS, pencil Check-up Quiz on Thursday! Warm Up :

hamish-warren
Download Presentation

Quick Start Expectations

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Quick Start Expectations Pick up a new HWRS and fill in: HW: p. 66-74 #14, 15, 19-24 (read the directions!) Get a signatureon your HWRS(no correction needed-power down) On desk: math journal, HWRS, pencil Check-up Quiz on Thursday! Warm Up : Write the rules for Multiplying Integers: Positive x Positive = Positive Positive x Negative = Negative Negative x Positive = Negative Negative x Negative = Positive

  2. Journal: October 27, 2014 3.3 Division What algorithm can you use for dividing integers? How are multiplication and division related?

  3. Divide the absolute values of the two numbers (ignore the signs), then decide which sign to use.

  4. If the signs are the same, the quotient will be positive. If the signs are different the quotient will be negative.

  5. Dividing Integers - Rules Positive ÷Positive = Positive Positive ÷ Negative= Negative Negative÷Positive = Negative Negative÷Negative= Positive

  6. No! Division in NOT commutative. When you change the order, you get quotientsthat are multiplicative inverses of one another!

  7. Adding zero to ANY rational number does NOTchange the value of the number. Yes! The multiplicative identity is 1.

  8. The sumof a number and its opposite (additive inverse) is always zero! Zero is its own additive inverse. Each nonzero rational number has a multiplicative inverse. It is the reciprocalof the number. A number times its multiplicative inverse is equal to one!

  9. Commutative Property of Multiplication Multiplicative Inverse Property Multiplicative Identity

More Related