Digits, Grade 8, Volume 1, Homework Helper

# Math Symbols

 + plus (addition) – minus (subtraction) ×, · times (multiplication) ÷ , , a b divides comma long division symbol enclosing , divide (division) = is equal to < is less than > is greater than ≤ is less than or equal to ≥ is greater than or equal to ≠ is not equal to ( ) parentheses for grouping [ ] brackets for grouping –a opposite of a … and so on ° degrees | a | absolute value of a Is the statement true? ≈ is approximately equal to b a b over eh reciprocal of a b eh over b A area ℓ length w width h height d distance r rate t time P perimeter b base length C circumference d diameter r radius S.A. surface area B area of base L.A. lateral area ℓ slant height V volume a n nth power of a x square root of x nonnegative square root of x π pi, an irrational number approximately equal to 3.14 (a, b) ordered pair with x-coordinate a and y-coordinate b A B ¯ eh b bar segment AB A′ image of A, A prime ΔABC triangle with vertices A, B, and C → arrow notation a : b , a b eh colon b comma , eh over b ratio of a to b ≅ is congruent to ~ is similar to ∠A angle with vertex A AB length of segment A B ¯ eh b bar A B → eh b vector ray AB ∠ABC angle formed by B A → b eh vector and B C → b c vector m∠ABC measure of angle ABC ⊥ is perpendicular to A B ↔ modified eh b with left right arrow above line AB || is parallel to % percent P (event) probability of an event

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