A

 Absolute value The absolute value of an integer is its distance from zero on the number line. [8] i-thikohk mwēci

 Acute angle An angle that measures less than 90 degrees. [8] nōti-kahkahkīyaw
 Acute triangle An acute triangle has three angles that measure between 0 and 90 degrees. [8] (1) otōskwana-nisto (2) ati-isko keka-mitahtātomitanaw
 Add To combine two or more quantities to find one quantity, called a total or a sum. [1] māmiwi-akihta 3 + 4
 Addition Mathematical operation of combining two or more numbers into a sum. [1] takohakihcikewin
 Addition property of equality The property that states that if you add the same number to both sides of an equation, the sides remain equal (i.e., the equation continues to be true.) [8] nāmawi-akicikiwin 5 = 5 2 + 3 = 3 + 2
 Additive inverse An additive inverse is the opposite of a given number. [8] tēyakwac – 5 and + 5
 Adjacent angles Adjacent angles are angles that are side by side and have a common vertex and ray. [8] (1) thikītakak (Woodland) (2) wihkwehtakâw (Plain)
 Algebra Algebra is the branch of mathematics concerning the study of the rules of operations and relations, and the constructions and concepts arising from them, including terms, polynomials, equations and algebraic structure. [8] algebra
 Algebraic equation An algebraic equation is an equation that includes one or more variables. [8] algebra oci masinayikiwin
 Algebraic expression An algebraic expression is a mathematical expression that consists of variables, numbers and operations. The value of this expression can change. algebra masinayikiwina $5x^2-3\sqrt[3]{x}-2y\\0.5p-3q+12s-t\\4a+3b$
 Algebraic numbers An algebraic number is a number that is a root of a non-zero polynomial in one variable with rational coefficients. [8] algebra akihcikewina
 Angle An angle is a figure formed by two rays that have a common endpoint. [8] (1) wīhkwētakāw (2) thikitākwaw (Woodland)
 Angle measure The size of an angle is measured in degrees. [8] wīhkwētakāw kayispicak
 Arc An arc is a part of a circle named by its endpoints. [8] (1) wāki-yaw (2) wakāw (Wodland)
 Area Area is defined as the number of square units that cover a closed figure. [8] askiy
 Area of a circle The area of a circle is the number of square units inside that circle. [8] pihcāyihk wāwiyiyaw A = πr2
 Area of a polygon The area of a polygon is the number of square units inside that polygon. [8] ka-tipastawa pihcāyihk
 Arithmetic The branch of mathematics is usually concerned with the four operations (addition, subtraction, multiplication and division) of positive numbers. [8] akihtāsowēpinikēwin
 Arithmetic expression An algebraic expression is a mathematical expression that consists of numbers and arithmetic operators (such as + , –, × , ÷ , roots, exponents, parentheses). akihtāsowēpinikēwina $5+7 \\ ( - 2 - 7)^3 + 5\times 3 \div 2 - \sqrt[5]{81}$
 Arithmetic mean The arithmetic mean (or simply the mean) of a list of numbers is the sum of all of the list divided by the number of items in the list. [8] akihtāsowēpinikēwin tastawāyak Arithmetic mean of $3, 7, 32 = \frac {3+7+32}{3} = 14$
 Arithmetic operations The four basic arithmetic operations are addition, subtraction, multiplication and division. [8] akihtāsowēpinikēwin itihwina
 Associative property Property of addition and multiplication that allows the numbers being added or multiplied to be regrouped without changing the outcome of the operations. [3] akihtāsowēpinikewin itwīwina $(3 × 2) × 5 = 3 × (2 × 5) \\(1 + 4) + 2 = 1 + (4 + 2)$
 Average The number obtained by dividing the sum of a set of numbers by the number of addends. [8] tastawāyak Average of $3, 7, 32 = \frac {3+7+32}{3} = 14$
 Axes Axes are the horizontal number line (x-axis) and the vertical number line (y-axis) on the coordinate plane. Axes are also the lines at the side and bottom of a graph. [8] akask