CBEST Exam Review 2023

CBEST Exam Review 2023 Stanine Score - STAndard NINE and is a method of scaling test scores so that the mean is five and standard deviation is two. The scale ranks scores from 1 to 9 with 1 being the lowest score and 9 being the highest. The lowest 4% of scores are in the stanine 1, the next 7% are in the second. etc 2/5 - 40% 4/5 - 80% 5/6 - 83 1/3 1/5 - ,20 1/3 - .333 3/4 - 75% 3/5 - 60% Percentile score - based on student's standing in a group. Ascertained from the percentaged of test takers who score the same or below the student's score 5 or higher - round your underlined place value up by 1 4 or less - leave underlined place value as is and change all the other numbers to its right to zero rectangle - p=2b+2h or p=2(b+h) parallelogram - p=2a+2b or p=2(a+b) square - p=a++a+a+a multiplication - product of times at twice division - quotient divided by divided into ratio half each triangle - p=a+b+c percent increase - change/starting point addition - addition sum total plus increase more than greater than place value - millions hundred thousands ten thousands thousands hundreds tens ones/unit Probability - Number of favorable outcomes/ number of possible outcomes dividing fractions - Invert (turn upside down) the second fraction and multiply. Reduce if necessary multiplying fractions - multiply the numerators, then multiply the denominators. Reduce to lowest terms if necessary. Tip: Can also use cancelling to reduce the answer Multiplying Mixed Numbers - 1) multiply the whole number 2) add this to the numerator of the fraction 3) this is now your numerator 4) the denominator stays the same reduce if needed changing decimals to percents - move the decimal point two places to the right insert a percent sign ex: .75 = 75% .05 = 5 % changing percents to decimals - eliminate the percents to decimals Move the decimal point two places to the left ( sometimes adding zeros is necessary) Continues...