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grade 7- integres by adding and subtracting.pptx
The document discusses integers for a 7th grade mathematics class. It aims to teach students the basic concepts of integers, how to determine integers on a number line, and the rules for adding and subtracting integers. Key terms are defined, such as positive and negative numbers. Formulas are provided showing that adding two positive integers or two negative integers results in a positive or negative integer, respectively, and that adding a positive and negative integer results in a positive number if the positive integer is greater or a negative number if the negative integer is greater. Examples of integer addition and subtraction problems are given.
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This section introduces integers, defining whole, negative, and positive numbers, and summarizing the concepts.
Explains the rules for adding and subtracting integers, highlighting outcomes based on the signs of numbers.
Presents exercises related to addition and subtraction of integers, testing the concepts learned.
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grade 7- integres by adding and subtracting.pptx
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- 3. By the endof the class, you will be able to: Learn basic concept of integers Determine integers on number line Memorize rules for addition and subtraction of integers Add and subtract integers What is absolute value? Objectives
- 4. 1. Whole number 2.Negative number 3. Positive Number 4. Integer KEY WORDS
- 5. Introduction Together, the positive(or counting) numbers, negative numbers and zero are called INTEGERS
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- 9. Integers FORMULA Adding twopositive integers (+) will always result in a positive integers Adding two negative integers (-) will always result in a negative integers Adding one positive (+) and one negative (-) integer will result in: Positive number if positive integer is greater Negative number if negative integer is greater
- 12. a). 8 +9 = b). - 8 – 9 = c). - 8 + 9 = d). + 8 – 9 = a). (-7) + (-6) = b). ( 7) + (6) = c). (- 7) + (+6) = d). ( +7) – (+6) =