maths

• Perimeter


  The distance around a figure.

  Add up all the sides!

  
• Acute angle


  An angle that measures less than 90 degrees.

  
• Congruent


  Same size, same shape.

  
• Consecutive


  Following in order without interruption.

  
• Denominator


  The number below the bar in a fraction that names the total number of equal parts.

  
• Difference


  Answer to a subtraction problem.

  
• Dividend


  The number being divided in division.

  
• Divisor


  The number that divides the dividend in division.

  
• Equivalent fractions


  Different fractions that name the same number.

  
• Factor


  Numbers you can multiply together to get another number

  
• Fraction


  A number that names a part of a whole, a part of a collection, or a part of a region.

  
• Hexagon


  A six sided figure.

  
• Horizontal


  Side to side.

  
• Intersecting lines


  Lines that meet or cross at a common point.

  
• Interval


  The space or distance between two points on a scale or number line.

  
• Line


  A straight path that extends infinitely in opposite directions.

  
• Line of symmetry


  A line that divides a figure into two equal parts that match when folded on the line.

  
• Mixed number


  A number containing a whole number part and a fraction part.

  
• Numerator


  The top number of the fraction that names the number of equal parts.

  
• Obtuse angle


  An angle that measures more than 90 degrees and less that 180 degrees.

  
• Parallel


  Lines that stay the same distance apart and never meet.

  
• Parallelogram


  A quadrilateral that has two pairs of parallel lines.

  
• Perpendicular


  Lines that intersect at 90 degrees.

  
• Product


  Answer to a multiplication problem.

  
• Quadrilateral


  A polygon with four sides and four vertices.

  
• Quotient


  Answer to a division problem.

  
• Rhombus


  A parallelogram with all four sides the same length.

  
• Right angle


  An angle that measures 90 degrees.

  
• Sum


  Answer to an additional problem.

  
• Trapezoid


  A quadrilateral with at least one pair of parallel sides.

  
• Vertex


  The corner of an angle.

  
• Vertical


  Up and down.

  
• Area


  The number of squares to cover the surface of a figure.

  
• Equivalent


  Equal.

  
• Operation


  Addition, subtraction, multiplication, or division

  
• Equation


  A mathematical sentence that contains an equals sign.

  
• Tenths place


  The place right after the decimal point.

  
• Hundredths place


  The second place after the decimal point.

  
• 360 degrees


  A full turn, or the number of degrees in a circle

  
• Straight angle


  An angle that measures 180 degrees.