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Math Basics: Understanding Geometric Shapes and Numbers

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Learn fundamental math terms such as acute angles, area, congruent figures, decimal numbers, equations, fractions, and more. Master key concepts to excel in mathematics.

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Math Basics: Understanding Geometric Shapes and Numbers

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  1. FCAT Math Terms Word Bank 1

  2. Acute Angle • An angle with a measure of less than 90 degrees.

  3. Angle • The shape made by two rays extending from a common end point, the vertex. Ray Angle Vertex Ray

  4. Area • The inside region of a two-dimensional figure measured in square units. Length Width Area= Length X Width

  5. Base • The line or plane upon which a figure is thought of as resting. Base

  6. Capacity • The amount of space that can be filled (usually refers to fluids).

  7. Congruent • Figures or objects that are the same shape and the same size. =

  8. Composite • A whole number that has more than two factors. 6 1 6 2 3

  9. Decimal Number • Any number written with a decimal point in the number. 5.8 8.02 9,128.1 12.003

  10. Equation • A mathematical sentence that equates one expression to another expression. 3X+2=9X Expression Expression

  11. Equivalent forms of a Number • The same number expressed in different forms. 3/4 is the same as 0.75 is the same as 75%

  12. Estimation • The use of rounding and/or other strategies to determine a reasonably accurate approximation, without calculating an exact answer. »

  13. Factor • A number or expression that divides exactly another number. 6 1 6 2 3

  14. Flip • A transformation that produces the mirror image of a geometric figure. Also called a Reflection.

  15. Fraction • Any part of a whole. 9/10 3/5 8/15

  16. Grid • A network of evenly spaced, parallel horizontal, and vertical lines.

  17. Inequality • A sentence that states one expression is greater than, greater than or equal to, less than, less than or equal to another expression. 8>7 5<3

  18. Length • A one-dimensional measure that is the measurable property on line segments. 18 cm 9 cm

  19. Mean • The arithmetic average of a set of numbers. 3, 6, 9, 11, 22 Mean = 10

  20. Median • The middle point of a set of ordered numbers where half of the numbers are above and half are below it. 3, 6, 9, 11, 22 Median=9

  21. Mode • The score or data point found most often in a set of numbers. 3, 6, 6, 9, 11, 22 Mode = 6

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