1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25 26 27 28 29 30
31 32 33 34 35 36 37 38 39 40
41 42 43 44 45 46 47 48 49 50
51 52 53 54 55 56 57 58 59 60
61 62 63 64 65 66 67 68 69 70
71 72 73 74 75 76 77 78 79 80
81 82 83 84 85 86 87 88 89 90
91 92 93 94 95 96 97 98 99 100
Mean
The mean is all the numbers added up and divided by how many there are
Median
The median is the middle number when all the digits are put in order from smallest to largest. I was taught a little trick that if you remember the m (in median) and the i (in median) this stands for middle, this may help you to remember it more.
Mode
The mode is the number that occers most often. The way I remember this one is the mo (in mode) stands for most often
Range
The Range is the distance from one number to another such as the distance from 5-20 is 15. To work this out you minus the smallest number from the largest.