EXAMPLE 2 Using Integer Subtraction Geography The highest point in Asia is Mount Everest at 8850 meters. The shore of the Dead Sea, the lowest point in.

Slides:

Advertisements

Similar presentations

11-5 Subtracting Integers Warm Up Problem of the Day

Advertisements

Example 1 Multiplying Integers a. 3 () 4 – Different signs, so product is negative. = 12 – b. () 3 – 6 – Same sign, so product is positive. = 18 c. ()

Evaluate the expression for the given value(s) of the variable(s).

EXAMPLE 1 Solve a trigonometric equation Solve 2 sin x – 3 = 0. SOLUTION First isolate sin x on one side of the equation. Write original equation. 2 sin.

EXAMPLE 1 Multiplying Integers

Chapter One Adding & Subtracting Integers. Adding Integers Key Concepts  Adding Integers with Same Sign  The sum of two positive integers is positive.

Integer Word Problems For each: 1) Copy the word problem into your notebook 2) Explain a solution to the problem ( In words how would you solve the problem)

With INTEGERS!.   A “change” in something can be either positive or negative so you need to be careful when you have negative numbers.  To find the.

Lesson Presentation Lesson Quizzes 1.

Add Name the integer that corresponds to each point. 5. A6. B 5 11 – Do Now.

Subtracting Integers with Counters. How to subtract integers with counters 1.Rewrite the problem – Keep the first number the same – Change the problem.

Find each sum. 1. – – –8 + 9 Give the opposite of each number –8 7. – –7 8 3 –1 Do Now.

Test Review. Multiplying & Dividing Integers Integers & Number Lines Adding & Subtracting Integers Integer Word Problems Integers & Algebra Tiles 100.

Over Lesson 2–1 A.A B.B C.C D.D 5-Minute Check 5 A.–4 B.4 C.12 D.20 Evaluate |–8| + |b| + a if a = 0 and b = 12. Five locations in California with elevations.

EXAMPLE 2 Evaluate a variable expression Substitute – 2 for x and 7.2 for y. Add the opposite – 2. = Evaluate the expression y – x

PENNSYLVANIA Pennsylvania is home to 12,440,621 people Pennsylvania is approximately 46,055 square feet. That makes Pennsylvania the 33 rd largest state.

Adding and Subtracting Integers

1.4 Adding Integers Standards: NS 1.2 and AF 1.3 Objective: Add Integers using Rules.

EXAMPLE 2 Standardized Test Practice SOLUTION =+.

Day 4 – Subtracting Integers. How to subtract integers with algebra tiles 1. Change the problem to addition  Keep the first number the same  Change.

1-3 (C and D) Multiplying and Dividing Integers. Problem of the Day During two plays of the football game, the Valley Tigers has a loss of 4 yards and.

1 Adding Integers 1.5 LESSON Scuba Diver. A scuba diver studying marine life is 4 feet below sea level. From that depth, the diver descends 72 feet to.

With Mr. Turos $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300 $400 $500.

What are the rules for adding integers?

Accentuate the Negative. Show me the money Kamauri decided to start a coffee shop. He spent: $20 on coffee. $15 on cups $10 on sugar and cream On the.

Add Integers on a Number Line Find Start at zero. Answer: = 7 Move three units to the right. From there, move four more units to the right.

Adding and Subtracting Integers Foundations of Algebra.

2.2 Adding Integers Use a number line to help visualize the addition of integers.

Algebra Readiness Chapter 4 Section : Compare and Order Integers The numbers , -3, -2, -1, 0, 1, 2, 3, 4,... are called integers. Negative.

11-4 Adding Integers Problem of the Day Warm Up Warm Up Lesson Presentation Lesson Presentation Problem of the Day Problem of the Day Lesson Quizzes Lesson.

WORD PROBLEMS WITH OPERATIONS Algebra 1. The table shows the annual profits of two piano manufacturers. Which manufacturer had the greater total profit.

Adding Integers and Developing Rules Correct answer is -15 What are you doing with the numbers? If both signs are negative how does that affect.

Take your homework out! Workbook pg. 174 & 176 If you were testing and missed the notes, come see me. You are still responsible to make up the classwork.

Example 4 You are at the base of a trail on Mount Rainier in Washington. The temperature is 50.9°F. The temperature changes at a rate of 0.005°F per foot.

7 th Grade Math Week of 8/25/14. Monday: Bell Work 1) Mt. Everest, the highest elevation in Asia, is 29,028 feet above sea level. The Dead Sea, the lowest.

Chapter 3 Review = = 11 Remember 17 + ( - 8) is equivalent to 17 – 8.

When the signs are different, subtract the numbers and the answer is the sign of the bigger number When the signs are the same, add the numbers and the.

Process versus The Reason Why 1.Because Subtraction Means to Take Away 2.Because Multiplication and Division of Integers Follow a Pattern 3.Because it.

Graphing and Ordering Integers EXAMPLE 1 The Global Positioning System (GPS) can be used to determine elevations. The table shows the lowest elevations.

ALGEBRA READINESS Chapter 5 Section 2.

Ch. 8 Integers. Understanding Rational Numbers  A rational number is any number that can be written as a quotient a/b, where a and b are integers and.

11-6 Subtracting Integers Problem of the Day Warm Up Warm Up Lesson Presentation Lesson Presentation Problem of the Day Problem of the Day Lesson Quizzes.

1 As you can see from the number lines below, the expression 5 – 4 and 5 + (–4) have the same value, 1. These equivalent expressions suggest the following.

Identify properties of multiplication

ALGEBRA READINESS LESSON 2-1 Warm Up Lesson 2-1 Warm Up.

= 31 = – 31 Find the difference. EXAMPLE 1 Subtract real numbers a. – 12 – 19 b. 18 – (–7) = – 12 + ( – 19) =

EXAMPLE 1 Subtracting Integers –56 – (–9) = – = –47 –14 – 21 = –14 + (–21) = –35 Add the opposite of –9. Add. Add the opposite of 21. Add. a. –56.

EXAMPLE 2 Graphing Using Slope-Intercept Form The y -intercept is 3, so plot the point (0, 3).STEP 1 The slope is, so plot a second point by 1 2 STEP 2.

 7.NS.1 Subtracting Integers. Just like with addition of integers, there are different ways of looking at subtraction of integers. We’ll look at these.

INTEGERS SOL 7.5 Benchmarks 7.6 You have worked with positive numbers in the past - numbers greater than zero. We are now going to work with negative numbers.

Copyright © 2017, 2013, 2009 Pearson Education, Inc. 1 Section 1.6 Subtraction of Real Numbers.

Standards: NS 1.2 and AF 1.3 Objective: Add Integers using Rules

Adding Integers A.08.

Hi! Today you will learn how to solve routine and non-routine problems involving addition of integers using appropriate strategies and tools. Annalice.

Negative Numbers and the Number Line

Accentuate the Negative

real rational irrational rational Real Numbers

Multiplying & Dividing Integers

Adding and Subtracting Integers

Starter Log into ixl and work on C.3 (up to an 70; if you already have an 80, get a 100) Quiz autopsy (adding and subtracting integers)

Twenty Questions Subject: Time.

Integer Review Addition Subtraction

Skill Check Lesson Presentation Lesson Quiz.

1-7 Subtracting Integers

9-5 Subtracting Integers Warm Up Problem of the Day

Which is equivalent - 2x = -30 2x = 13 -2x = 30

Positive and Negative Numbers

Rules of adding integers

Unit 1Number Systems.

Presentation transcript:

EXAMPLE 2 Using Integer Subtraction Geography The highest point in Asia is Mount Everest at 8850 meters. The shore of the Dead Sea, the lowest point in Asia, is about 410 meters below sea level. What is the difference between these elevations? SOLUTION STEP 1 Represent the two elevations with integers. Mount Everest: 8850 mDead Sea: –410 m

EXAMPLE 2 STEP 2 Find the difference of 8850 and –410 meters – (–410) Rule for subtracting integers = 9260 Answer The difference between the elevations is 9260 meters. Add. = Using Integer Subtraction

EXAMPLE 3 Finding a Change in Temperature Weather In Fairfield, Montana, on December 24, 1924, the air temperature dropped a record amount. At noon, the temperature was 63 o F. Twelve hours later, the temperature was –21 o F. What was the change in temperature? SOLUTION Change in temperature = end temperature – start temperature = –21 – 63 Substitute values.

EXAMPLE 3 = –21 + (–63) Rule for subtracting integers = –84 Add. ANSWER The change in temperature was –84 o F, so the temperature dropped 84 o F. Finding a Change in Temperature

GUIDED PRACTICE for Examples 2 and 3 ANSWER 543 ft ANSWER 44 o F Elevation Find the difference between an elevation of 535 feet above sea level and an elevation of 8 feet below sea level. 5. Temperature The temperature at 6 A.M. was – 12 o F. At 3 P.M. the temperature was 32 o F. What was the change in temperature? 6.