D125 Math for Elementary Educators I (MEE1) Questions With All Correct Answers

D125 Math for Elementary Educators I (MEE1) Questions With All Correct Answers Whole Numbers - ANSWER Natural numbers ( counting numbers) and zero; 0, 1, 2, 3... Integers - ANSWER Whole numbers and their opposites Rational Numbers - ANSWER Any number that can be expressed as a fraction Irrational Numbers - ANSWER Any real number which cant be expressed as a fraction of two integers Real Numbers - ANSWER Every number, negative or positive; fraction or decimal; rational or irrational Is it Prime? - ANSWER 1. Find square root 2. Find the greatest prime number that is less than the square root 3. Divide number by all prime numbers to see if they evenly divide Expanded Notation - ANSWER From left to right, determine place value and use multiplication. Watch out for decimals! Exponents (Powers) - ANSWER The base number multiplies itself a number of times based on the exponent Scientific Notation - ANSWER 1. Write the number with a decimal point at the end 2. Move the decimal to the left until there is only 1 digit on the left and count the number of decimal places you moved 3. Write number without trailing zeroes and multiply by 10 to get the power