TSIA2 STUDY GUIDES: MATH Questions and Correct Answers/ Latest Update / Already Graded

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TSIA2 STUDY GUIDES: MATH Questions
and Correct Answers/ Latest Update /
Already Graded
Adding with same denominator

Ans: (a/b)+c/b)=((a+c)/b)


Subtracting with same denominator

Ans: (a/b)-(c/b)=((a-c)/b)


Adding with different denominator

Ans: (a/b)+(c/d)=((ad)+(cb))/bd


Subtracting with different denominator

Ans: (a/b)-(c/d)=((ad)-(cb))/bd


Multiplying Factors

Ans: (a/b)*(c/d)=(a*c)/(b*d)


Dividing Factors


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Ans: (a/b)/(c/d)=(ad)/(bc)


Factoring numbers

Ans: a(c/d)= a+(c/d)= (ad+c)/d


Intergers

Ans: {...,−3,−2,−1,0,1,2,3,...}


Real Numbers

Ans: All numbers that are on number line. Integers plus
fractions, decimals, and irrationals


PEMDAS

Ans: Parentheses, Exponents, Multiplication, Division,
Addition, Subtraction


Percentages

Ans: part = (percent / 100) x whole


percent of change

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