ACCUPLACER MATH PLACEMENT TEST QUESTIONS AND ANSWERS 2024

How to divide fractions Multiply by the recipricol of the second fraction (ex. 3/4 5/7 is rewritten as 3/4 x 7/5) How to add or subtract decimals 1. line up the decimals 2. fill in spaces with zeros 3. bring decimal STRAIGHT DOWN 4. Add using correct place value Brainpower Read More Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:05 / 0:15 Full screen How to divide decimals • If number you're dividing by is a decimal, then divide as usual and bring decimal point in the number being divided straight up. • If number you're dividing by IS a decimal, then make it not a decimal by pushing decimal to the right as much as needed. Push decimal exact same amount to the right in the other number. How to change a decimal to a fraction Starting from the decimal point, count the decimal places (to the right). If there is one decimal place, put the number over 10 and simplify. If there are two places, put the number over 100 and simplify. If there are three places, put it over 1000 and simplify. Four places, put it over 10,000 and simplify. How to change a fraction to a decimal Ex: 7/25= 7 x 4 25 -- ---- 25 x 4 = 100 So 7/25=.25 11/20= 11 x 5 55 -- --- 20 x 5 = 100 So 11/20=.55 Adding and subtracting decimals 1. Vertically line up numbers at their decimal points. 2. Use zeros as placeholders to make each number thee same number of places. 3. Bring the decimal point down below. 4. Add Vertically to find the sum; subtract vertically to find the difference. Multiplying Decimals 1. Multiple numbers as if whole numbers. 2. Then count total number of decimal places in the factors and add them (Ex: 2.2 and 2.33 has three total decimal places) 3. Add the total number of decimal places to product, counting left to right (Ex: 2.2*2.33 = 5126 -- 5.126 final answer) Dividing decimals 1. Change divisor (the # outside the box thing) to a whole number by moving the decimal point to the right as many places as it takes to make a whole number. 2. Move the decimal point of the other number the same number of spaces to the right. 3. Complete long division problem. Change a percentage to a fraction 1) Write the number in front of the % symbol as the numerator over a fraction bar. 2) Write 100 as the denominator. 3) Discard the % symbol. 4) Reduce fractions whenever possible. Change a decimal to a percentage 1) Move the decimal point two places to the right. 2) Add a % symbol. Change a fraction to a percentage 1) Change the fraction to a decimal by dividing the numerator by the denominator (ex. 9/50 = 9 divided by 50) 2) Change the decimal to a percentage by moving the decimal places two places to the right. 3) Add a percent symbol. Find the mean / average of a set of numbers 1) Add up all numbers in set. 2) Divide by the total number of items in the set. Whenever a number is raised to the first power, it remains The same. (Ex: 9 raised to first power is 9) Whenever a number is raised to the zero power, it equals Zero How to multiply fractions Multiply numerators, then denominators the slope-intercept form of an equation of a line y=mx+b Add or remove ter