PPT-§8.2 Adding and Subtracting Integers

042017 How do we use models to add and subtract integers How do we add or subtract integers without models Today Well Discuss One of the main reasons for having negative numbers is that they give us . By: Jenny Erickson. Adding in Scientific Notation. and. Subtracting in Scientific Notation. Adding and Subtracting…. The important thing to remember about adding or subtracting is that the exponents must be the same! . What You Will Learn. Some definitions related to integers.. Rules for adding and subtracting integers.. A method for proving that a rule is true.. Are you ready??. Definition. Positive number – a number greater than zero.. Adding/Subtracting with . Like. Denominators. Like denominators are denominators that are the same. Steps:. 1.) If there are whole numbers, add or subtract the whole numbers.. 2.) Add or subtract the numerators. adding, subtracting, multiplying, and dividing. If the signs of both numbers are alike, (both positive or both negative) add the two numbers and keep the same sign as in the original problem.. Example: -4 + -8 = -12. and Subtracting . Fractions. Pre-Algebra. Objectives. Add . proper fractions. Subtract proper fractions. Solve a word problem involving . . addition and subtraction of fractions..  .  .  .  .  . Rational Expressions. Adding & Subtracting . Rational Expressions . with the Same Denominators. Finding the LCD of 2 or more Polynomial Denominators. Adjusting . Opposite Factors . in Denominators. Section 1-5. Goals. Goal. To find sums and differences of real numbers.. Rubric. Level 1 – Know the goals.. Level 2 – Fully understand the goals.. Level 3 – Use the goals to solve simple problems.. Adding, Subtracting, Multiplying, and Dividing Integers. Vocabulary. Integer- whole numbers and their opposites. Absolute value- A number’s distance from zero on a number line. Additive Inverse- The opposite of any number, x, is –x, and their sum is zero. Student Expectation. 7. th. Grade:. 7.1.2C. Use . models, such as concrete objects, pictorial models, and number lines, to add, subtract, multiply, and divide integers and connect the actions to algorithms. . Soup – . er. mathematics. Adding integers. Option 1 . (SAME SIGN). . Add and take the sign of the bigger number.. Option 2. (DIFFERENT SIGNS). . Subtract and take the sign of the bigger number. What are Integers?. Integers are the whole numbers and their opposites.. …-3, -2, -1, . 0, 1, 2, 3… . Yesterday…. We learned to add integers using models such as number lines and integer tiles.. with Double Signs. We have been learning how to Add and Subtract Integers using: . Number Lines. Rules. Why Learn?. Well, let’s take a look at how a hike and a little “butterfly watching” ties this skill to the real world!. with Double Signs. We have been learning how to Add and Subtract Integers using: . Number Lines. Rules. Why Learn?. Well, let’s take a look at how a hike and a little “butterfly watching” ties this skill to the real world!. This is a class set. Do not make any marks on this document. . direction. Each of the students will need to record verbal model, expression, process and answer on notebook paper. Don’t forget the unit. .