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# Math assessment

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• ### Math assessment

1. 1. Integers!By: Atom 20 and Atom 7
2. 2. Introduction
3. 3. Introduction• Integers use both positive and negative numbers• Positive numbers are numbers that are above zero. (e.g. 7 or 20)• Negative numbers are numbers that are below zero. (e.g. -6 or -28)
4. 4. The Number Line• The number line is a very useful tool to help you ﬁgure out the answers of integer problems. Think of it as a tool.
5. 5. Rules
6. 6. Rules• When you add, subtract, multiply or divide negatives you have to remember these rules or else you’ll answer the question incorrectly!
7. 7. Operation Rules• Use the number line to help your understanding for these problems:• Addition: -2 + 1= ? 5 + -3= ? Tricky one coming up: -6 + -2 = ?• Subtraction: 1-6=? -1-2=? tricky one: 1--1=?
8. 8. Wacky Facts And Opinions
9. 9. Wacky Facts And Opinions• Fact: A negative number plus it’s positive is zero: 1+-1= 0 or -1+1= 0.• Opinion (Atom 7): Multiplication and division with integers is easier than addition and subtraction with integers.• Fact: Every positive integer has a corresponding negative integer. (e.g. -3 and 3).• Opinion (Atom 20): Multiplying integers are really easy. Subtracting integers are the hardest.• Fact: Subtracting a negative integer is the same as adding a positive integer.• Fact: Zero is not an integer.
10. 10. Conclusion
11. 11. Conclusion• Integers can be very confusing but if you understand the concepts you’ll be a master!