2026 STUDY GUIDE COMPLETE CORE
ACADEMIC SKILLS AND PRACTICE QUESTIONS
◉ Rational Numbers. Answer: Any number that can be expressed as
a fraction or decimal form and be graphed on a number line
◉ Mixed numbers. Answer: a number that is made up of a whole
number and a fraction
◉ Decimals. Answer: a number that uses place value and decimal
points to show values less than one, such as tenths, hundreths, etc.
◉ Natural Numbers. Answer: real numbers that can be pointed to in
nature, such as one tree, two people, three dogs. start at 1.
◉ Whole numbers. Answer: set of natural numbers, and zero.
◉ integers. Answer: positive and negative counting numbers
◉ irrational numbers. Answer: Numbers that cannot be expressed as
a ratio of two integers. Their decimal expansions are nonending and
, nonrepeating. they must be approximated in order to be placed on a
number line
◉ algorithm. Answer: a specific set of steps that allows the user to
reach the correct answer every time
◉ rectangular arrays. Answer: uses circles, squares, or objects to
show an end product of two factors. they are arranged into equal
columns and rows. first factor is number of rows and second is
number of columns
◉ equal groups. Answer: great visual strategy. students use the first
factor to create groups and the second to draw dots in each group.
total number of dots is the product
◉ PEMDAS. Answer: Parentheses, Exponents, Multiplication,
Division, Addition, Subtraction
◉ inverse operations. Answer: operations that undo one another
◉ additions inverse is. Answer: subtraction
◉ multiplication inverse is. Answer: division