NYSCTE Multi-Subject CST Math Section
Exam Questions and Answers 100% Verified
Cardinal numbers - ANSWER-1, 2, 3, 4, 5, etc.
Ordinal numbers - ANSWER-1st, 2nd, 3rd, 4th, 5th, etc.
Place value - ANSWER-Millions Hundred Thousands Ten Thousands Thousands Hundreds Tens Ones
3,579,410 (5 = 500,000); (9= 9,000)
Exponents - ANSWER-3^5 = 3 x 3 x 3 x 3 x 3 = 243
Multiplying exponents - ANSWER-a^n x a^m = a^m+n (7^8 x 7x5 = 7^13)
Dividing exponents - ANSWER-a^n / a^m = a^m-n (7^^5 = 7^3)
(a^n)m = a^nxm - ANSWER-(3^2)2 = 3^4 = 81
Scientific notation - ANSWER-Power shows how many zeros to use: 10^2 = 100; 10^4 = 10,000; 10^-3 - 0.0001
Turn 7,952 into scientific notation - ANSWER-7.952 x 10^3
Rounding - ANSWER-Digit to the right; 5 or more = round up; 4 or less = leave. i.e. 859,465 round to the thousands = 859,000
Rational numbers - ANSWER-They can be written as a fraction. i.e. 9 = 9/1; 0.25 = 1/4; 0.4 = 410 Irrational numbers - ANSWER-Cannot be written as a fraction. i.e. square root of 2
Equivalent fractions - ANSWER-You can multiple and divide the fractions by the same number. i.e. 2/5 x 3/3 = 6/15 i.e. 6/8 x 4/4/ = 24/32.
Comparing fractions to see which is bigger or smaller - ANSWER-Cross-multiply. i.e. Which is bigger: 13/18 or 5/7? Multiple 13 x 7 and 18 x 5. You get 91 and 90. 91 > 90 so
13/18 > 5/7
Improper fraction to a mixed number - ANSWER-It's the quotient and a fraction of the remainder over the divider. 23/ 8 >> 8 goes into 23 >> 2 with a remainder of 7 >> 2 and 7/8.
Mixed number to an improper fraction - ANSWER-Multiply whole number by denominator then add numerator. 3 and 2/5 >> 3 x 5 = 15 + 2 = 17 >> 17/5.
Order of operations - ANSWER-PEMDAS. i.e. 4 + 3 x 7^2 >> 4 + 3 x 49 >> 4 + 147 = 151
Factors - ANSWER-Evenly divide the number with no remainder. i.e. factors of 4 = 1, 2, 4; factors of 10 = 1, 2, 5, 10
Multiples - ANSWER-All the numbers you get when you count by that number. i.e. multiples of 2 = 2, 4, 6, 8, 10, etc; multiples of 5 = 5, 10, 15, 20, 25, etc.
Least Common Multiple (LCM) - ANSWER-Smallest multiple shared between two numbers. i.e. LCM of 6 and 8 = 24
Greatest Common Factor (GCF) - ANSWER-Largest factor shared by 2 numbers. i.e. GCF of 28 and 36 = 4.
Distributive property - ANSWER-a(b+c) =(axb) + (axc)
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