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Scientific Notation and Order of Operations. By Kyle Chisholm. Scientific Notation.
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Scientific Notation and Order of Operations By Kyle Chisholm
Scientific Notation Scientific notation is a way of writing big numbers without actually writing them out. To write scientific notation you write out the numbers of the number that aren’t zero as a decimal higher than zero but smaller than ten,(example: 596,000,000 would be 5.96) multiplied by 10 to the power of x.
Example Example: 596,000,000 would be 5.96x10⁸. You put 10 to the power of eight because it you must move the decimal in 5.96 to the right eight times to get the original number. 596,000,000 5.960000000 →→→→→→→→
Order of Operations Order of operations tells you in which order to solve a problem for example if you had 100-3³x(5-2) you would think you do 100-3³ then multiply that by 3 but really you would do what’s in parentheses first, then do 3³, and finally do 100 minus that. This is because order of operations.
Order of Operation You do this because order of operations says you do the operations in this order: First, you do what’s in Parentheses. Second, you do the exponents. Third, you do the multiplication and division in which ever order they appear in.(For example if it was 6x4/12 you would do 6x4 then 24/12. Or if it was 9/3x4 you would do 9/3 then 3x4) Finally, you do addition and subtraction in which ever order they appear in like division and multiplication.
Way 1: PEMDAS There are two methods for memorizing order of operation. The first way takes the word makes each operation into a letter and you say it as a word: Pemdas.
Way 2: P.E.M.D.A.S The second method is like the first method except it is an acronym instead of a word. P being please, E being excuse, M being my, D being dear, A being aunt, and S being Sally. So if you put it together it is: Please excuse my dear aunt Sally.
Question 1 Between which two numbers does the first digit in scientific notation have to be? A: 0 and 100 C: 10 and 100 B: 0 and 10 D: 0 and 1
Question 2 What is the correct way to write 8,967,000,000 in scientific notation? A: 89.67x10⁹ C: 8.967x10⁹ B: 89.67x10⁸ D:8.967x10⁸
Question 3: Challenge What is the correct way to write 0.1 in scientific notation? A: 0x10⁻¹ C: 10x10⁻¹ B: 1x10⁻¹ D:1x10 ⁻¹⁰
Question 4 What is the order of operations abbreviated? A: P.E.M.D.A.S C:P.E.M.D.A.A.S B: P.E.D.M.A.S D:P.E.M.D.S.A
Question 5 What is 10+5X6? A: 90 C: 300 B: 630 D:40
Question 6: Challenge What is3-15/5+6x4+72/8? A:10.8 C:4.125 B:33 D:12
