Subtracting Integers.

Slides:

Advertisements

Similar presentations

Subtracting Polynomials. Lets review Copy the following expressions and then write the opposite of each one. 1. 2y x 2 +5x m 2 -m+3.

Advertisements

Degrees Minutes & Seconds 360 ° in a circle 1° = 1/360 of a circle 1’ = 1/60 of one degree 1” = 1/60 of one minute 1° = 60 minutes or 3600 seconds.

NO CALCULATORS!!!!!!!.  Integers are the whole numbers and their opposites (no decimal values!)  Example: -3 is an integer  Example: 4 is an integer.

INTEGERS: adding, subtracting, multiplying, and dividing

EXAMPLE 1 Identify direct variation equations

ADDING INTEGERS Positive + Positive = Positive Positive + Positive = Positive ( +3) + (+2) = +5 ( +3) + (+2) = +5 When a number is positive, you do not.

Add, Subtract, Multiply, and Divide Decimals

Add positive and negative fractions and decimals.

Addition, Subtraction, Multiplication, and Division of Integers

Dividing Decimals 3-3. When you divide two numbers, you can multiply both numbers by the same power of ten without changing the final answer. Multiply.

Objective - To subtract integers. To subtract an integer is to add its opposite. a - b =a + -b = (-5) =8 + 5 = = 4 Rewrite the.

Adding and Subtracting Integers Step 1: Check to see if the problem contains double negatives. There are no double negatives in this problem Double.

Subtracting Integers Algebraically. How to Subtract Integers Algebraically 1.Rewrite the problem  Keep the first number the same  Change the problem.

Subtracting Integers. What’s the difference between and 7 + (-3) ? = 4 and 7 + (-3) = 4 The only difference is that is a subtraction.

Lesson 6-3 Example Find the difference of 3 and –2. Use the number line. Step 1Write the subtraction expression. 3 – (–2)

Reasonableness with Fractions and Decimals 1.Find what whole numbers the first decimal or fraction would be between. 2.Write the two numbers down. For.

Review Adding Integers: (-5) = = (-7) = =

Warm-Up Draw a number line for both problems and solve. 1.) = 2.) = Use the same paper as yesterday!

Chapter 6.4.  Reminder: What are we trying to do when we solve an inequality?  Answer:  To get the variable by itself.

GEMAGEMA Grouping symbols ( ) [ ] {} | | Exponential Operations Multiplicative Operations Additive Operations.

Multiplying and Dividing in Scientific Notation. Multiplying Numbers in Scientific Notation Multiply the decimal numbers together. Add the exponents to.

Reverse Subtraction Objectives:  do a subtract by adding  check your answer by adding.

Adding & Subtracting Decimals I will add and subtract decimals.

Same Signs Different Signs 1) =+7 Objective- To solve problems involving operations with integers. Combining.

Subtracting Integers Objective: Learn to subtract integers.

Adding Integers KMS 7 TH GRADE. Adding Integers Rules  To add integers with the same sign: you add the absolute values and keep the sign.  Example A.

1.5 Adding Integers. Adding Integers! When adding two positive numbers, Start at 5 Move to the right 7 spaces Answer : 12.

Multiplying and Dividing in Scientific Notation

Interesting Integers – Part Dos

Adding and Subtracting Rational numbers

Interesting Integers! Adding

Fraction and decimal operation notes

Rules for Adding & Subtracting Integers

Integers Rules of Operation.

Integer Rules Memorize the Rules.

Objective The student will be able to:

Adding and Subtracting in Scientific Notation

Adding, Subtracting, and Multiplying Decimals 3-1/3-2

Adding Integers.

Addition of Signed Numbers

SAME SIGNS JUST ADD !! ADDITION OF INTEGERS = (-2) = -10

Multiply Decimals.

Objective: Be able to add and subtract directed numbers.

Problem-Solving Steps Solve Problem-Solving Steps Solve

Using Rules to Subtract Integers

Multiplication and integers

Unit 1. Day 5..

Rules of Integers.

The Integer Song.

Chapter 3 Test Review.

Chapter 2: Adding Integers

Adding and Subtracting Decimals

Adding & Subtracting Decimals

Warm-up August 11, 2016 Change these fractions to decimals – if necessary, show your work to four decimal places. 1. 4/5= 2. 2/5= 3. 13/16=

Objective - To add and subtract decimals.

Lesson #17: Adding Integers

Multiplying and Dividing in Scientific Notation

Multiplying and Dividing in Scientific Notation

Chapter 2-3 Subtracting Integers

Subtracting Integers Sec 2.3 pg

1-7 Subtracting Integers

Subtracting Integers.

8 + (-6) = 2 ______ Different Signs Subtract.

Integers Subtracting Integers.

Objective: Be able to add and subtract directed numbers.

Good Morning ! Here’s your warm up..

Addition & Subtraction Addition & Subtraction

Chapter 2: Adding Integers

Presentation transcript:

Subtracting Integers

What did you learn yesterday? Write only the answers to the following problems on the piece of scrape paper given to you. 19 + (-29) -18 + 3 -6 + (-5) 15 + (-6) 9 + 9 = -10 = -15 = -11 = 9 = 18

Procedures Identify the operation Rewrite the problem in addition form Identify if the signs are the same or different Tell whether to add or subtract Finally give answer

Problem 1 -5 – 8 -5 + (-8) same add -13

Problem 2 -8 – (-4) -8 + 4 different subtract -4

Problem 3 13 – 15 13 + (-15) different subtract -2

10 – (-5) Problem 4 10 + 5 same add 15

-9 – (-13) Problem 5 -9 + 13 different subtract 4

-18 – 4 Problem 6 -18 + (-4) same add -22

21 – 15 Problem 7 21 + (-15) different subtract 6

-7 - (-14) Problem 8 -7 + 14 different subtract 7

-11 – 12 Problem 9 - 11 + (-12) same add -23

17 – 24 Problem 10 17 + (-24) different subtract -7

Now is your turn!! Do as many problems as possible in the next ____ minutes. After time is up you will switch papers. We will go over the answers. Then you will get your paper back.

Answers to Subtracting Decimals 1. 0.654 2. -4.452 3. -2.302 4. -0.19 5. 11.124 6. -2.4 7. -5.529 8. 17.087 9. 1.199 10. -5.553 11. 5.188 12. -0.826 13. -2.657 14. -0.272 15. 2.955 16. -12.509