## Thursday, April 18, 2013

### 8 Times Tables Pattern

When I look at the multiplication tables, I see patterns. Let's take a look at the  8 Times Tables.

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 8 x 1 = 8 8 x 2 = 16 8 x 3 = 24 8 x 4 = 32 8 x 5 = 40 8 x 6 = 48 8 x 7 = 56 8 x 8 = 64 8 x 9 = 72 8 x 10 = 80 8 x 11 = 88 8 x 12 = 96

First look at the first five facts. Do you see a pattern?
 8 x 1 = 08 8 x 2 = 16 8 x 3 = 24 8 x 4 = 32 8 x 5 = 40
If I look at the ten's digit that number is one less than the number multiplied by eight.
• Eight times 1 starts with 0
• Eight times 2 starts with 1
• Eight times 3 starts with 2
• Eight times 4 starts with 3
• Eight times 5 starts with 4
Now look at the next 5 facts. Do you see a pattern?
 8 x 6 = 48 8 x 7 = 56 8 x 8 = 64 8 x 9 = 72 8 x 10 = 80
Eight times the number starts with two less than the number
• Eight times 6 starts with 4
• Eight times 7 starts with 5
• Eight times 8 starts with 6
• Eight times 9 starts with 7
• Eight times 10 starts with 8

Now look at the next 5 facts. Do you see a pattern?

8 x 11 = 88
8 x 12 = 96
8 x 13 = 104
8 x 14 = 112
8 x 15 = 120

Eight times the number starts with three less than the number
• Eight times 11 starts with 8
• Eight times 12 starts with 9
• Eight times 13 starts with 10
• Eight times 14 starts with 11
• Eight times 15 starts with 12