NYSTCE: Math multi-subject part 2 Exam Questions and Answers 100% Correct

Numbers - ANSWER-The basic building blocks of mathematics Integers - ANSWER-whole numbers and their opposites, includes zero, does not include fractions prime number - ANSWER-A whole number that has exactly two factors, 1 and itself. composite number - ANSWER-A whole number greater than 1 that has more than two factors. The decimal or base 10 system - ANSWER-is a number system that uses ten different digits (0, 1, 2, 3, 4, 5, 6, 7, 8, 9). Rational Numbers - ANSWER-All positive and negative integers, fractions and decimal numbers. Ant number that can be written as a fraction, any terminating or repeating decimals irrational numbers - ANSWER-Numbers that cannot be expressed as a ratio of two integers. Their decimal expansions are nonending and nonrepeating. real numbers - ANSWER-All rational and irrational numbers, does not include imaginary perfect square - ANSWER-A rational number whose square root is a whole number absolute value - ANSWER-The distance a number is from zero on a number line. ALWAYS POSITIVE Making a decimal a fraction - ANSWER-Let's say .24 -put 24 over 100 -then it reduces to 6/25 part=%(whole) - ANSWER-For word problems Percent Change Formula or Error - ANSWER-Percent Change =(final value−initial value)/initial value×100 Or (amount of change)/(original amount)x 100 Dividing Fractions - ANSWER-multiply by the reciprocal scientific notation - ANSWER-A method of writing or displaying numbers in terms of a decimal number between 1 and 10 multiplied by a power of 10. a x 10^n dividend - ANSWER-the number that is being divided divisor - ANSWER-the number you divide by greatest common factor - ANSWER-The largest factor that two or more numbers have in common. least common multiple - ANSWER-The smallest multiple (other than zero) that two or more numbers have in common.