Maths Y7

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Across
  1. 2. the number by which another number is divided
  2. 5. common factor the largest number that is a factor of two or more other numbers. E.g. the highest common factor of 14 and 21 is 7.
  3. 6. the bottom number in a fraction. In ¾, the denominator is 4.
  4. 11. (vertices) corner (corners)
  5. 13. to meet at a right angle, e.g. ⊥
  6. 15. terms terms containing the same letters e.g. 2k and -4k are like terms
  7. 16. the difference between the largest and the smallest number in a set
  8. 18. when all the sides of a shape are the same length
  9. 20. a sort of average. To find the median, put the numbers in order, then find the middle number.
  10. 21. *capacity* of a container the volume of liquid that can be put into a container
  11. 25. data An selection of values in a grouped frequency table.
  12. 26. when you find an equivalent fraction, by dividing the top (numerator) and bottom (denominator) by the same number (a common factor). This is also called simplifying.
  13. 27. whole numbers
  14. 29. of rotation The point around which a shape is rotated. This point stays still while the rest of the shape moves.
  15. 31. a regular solid, with 6 faces
  16. 34. number 0,1,2,3,4,5.....
  17. 35. fractions Fractions that represent the same amount. E.g. 1/2 and 3/6.
  18. 38. the horizontal (side to side) axis on a grid
  19. 39. shape (or composite shape) a shape made up from similar shapes
  20. 40. turning in the same direction as the hands of a lcock
  21. 41. clock a system of measuring time in terms of a repeating period of 24 hours
  22. 42. two straight lines travelling in the same direction (therefore the distance between them is always the same)
  23. 45. identical in size and shape
  24. 46. grid two axes used to plot points, using coordinates.
  25. 47. number the result of multiplying a whole number by itself; 81=9²
  26. 49. factor a multiplier for converting one unit to another. E.g. to convert meters into centimeters, the multiplier is 100, because there are 100cm in 1m.
  27. 50. are the types of averages? a representative value; it represents a group of numbers. The mode, median, and mean, are all types of averages.
  28. 51. factor a) the number that is a factor of two different numbers. E.g. 3 is a factor of 6 and 12.
  29. 52. Clock a system of measuring time in terms of a repeating period of 12 hours
Down
  1. 1. the vertical (up and don) axis on a grid
  2. 2. a number that is being divided
  3. 3. triangle a triangle with a right angle (90°)
  4. 4. Two numbers that are used to locate a point. Written in brackets. e.g. (4,6)
  5. 7. triangle a triangle where every side is the same length
  6. 8. a sort of average. To find the maen of a set of numbers, add them all together, and divide by how many there are
  7. 9. angle an angle less than 90°
  8. 10. chart a diagram where values are represented by the length of bars
  9. 12. how many times a number occurs in a set. e.g. in the set {1,2,2,3,4,5,7,13}, 2 occurs twice.
  10. 14. is an *average*?
  11. 17. turning in the opposite direction from the hands of a lcock
  12. 19. (%) a fraction written out of 100 (e.g. 1%=1/100)
  13. 22. in the equation: y=3x+4x²+2x+6, the terms 3x and 2x are like terms, and those can be collected to make 5x, making the equation: y=4x²+5x+6
  14. 23. a quadrilateral with two pairs of equal and parallel sides,
  15. 24. like terms gathering, by addition and subtraction, all the like terms.
  16. 28. 1000kg
  17. 30. terms Consecutive means "one after another", or "in a row". So the first 4 consecutive numbers are 1,2,3, and 4. The first 4 consecutive odd numbers are 1,3,5, and 7.
  18. 32. a number that divides into other numbers without a remainder.
  19. 33. ASA is an abbreviation of Angle Side Angle (or the size of two angles, and the length of the side between them). ASA is the minimum amount of information you need to construct a triangle.
  20. 36. triangle a triangle with two sides equal in length
  21. 37. one of the two number lines drawn in a co-ordinate grid.
  22. 43. a sort of average. it is the number which occurs most
  23. 44. two different mathematical expressions, which have the same value e.g.
  24. 48. when one amount is compared to another amount, using the symbol : (e.g. if a tank has 9 gold fish and 3 beta fish, we can say the ratio is 9:3, which we can cancel down to 3:1)
  25. 49. multiple a number that is a multiple of two different numbers: e.g. 12 is a common multiple of 2 and 3.