2.5 dividing integers ws day 2

Lesson 2.5 , For use with pages 77-81 Evaluate the expression when x = 3 and y = 17 . 1. 11 + 4 x 2. 6 y x

Lesson 2.5 , For use with pages 77-81 Evaluate the expression when x = 3 and y = 17 . ANSWER 34 ANSWER 5 1. 11 + 4 x 2. 6 y x

Dividing Integers Day 2 Lesson 2.5 Pages 77-81

EXAMPLE 3 Evaluating Expressions Evaluate the expression when a = –24, b = 8 , and c = –4 . Substitute values. Different signs, so quotient is negative. Substitute values. Multiply. Same sign, so quotient is positive. = 48 a. a b = – 24 8 b. ab c = – 192 – 4 = – 24 8 – 4 = – 3

Daily Homework Quiz For use after Lesson 2.5 Find the quotient. Evaluate the expression when k = – 36 , m = 6 , and n = 3 . 1. mn k 2. m + n k 3. m 2 + 4 n 2 2 k

Daily Homework Quiz For use after Lesson 2.5 Find the quotient. Evaluate the expression when k = – 36 , m = 6 , and n = 3 . 1. mn k ANSWERS 1 2 – 2. m + n k 3. m 2 + 4 n 2 2 k ANSWERS – 4 ANSWERS – 1

Order of Operations with Integers ,[object Object],[object Object],[object Object],[object Object],[object Object]

Order of Operations with Integers ,[object Object],[object Object],[object Object],[object Object],[object Object],15 -64 5 18 -66

Try these on your own ,[object Object],[object Object],[object Object],[object Object]

Try these on your own ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

GUIDED PRACTICE for Examples 2 and 3 Substitute values. Multiply. Same sign, so quotient is positive. = 2 = – 42 – 21 Evaluate when a = –42, b = –3, and c = 7 . a bc a bc = – 42 – 3 7

2.5 dividing integers ws day 2

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2.5 dividing integers ws day 2