Question

Using
18. Study pattern in the adition of three
Consecutive numbers and find the rule. Using
the rule, extend to these more sums.
1+ 2+ 3 = 6

2+3+4 =9
3+ 4+ 5=12
4+5+6=15​

Answer 1

Step-by-step explanation:

2+3+4 =9

3+ 4+ 5=12

4+5+6=15

5+6+7=18

6+7+8 =21

7+8+9=24

Answer 2

Answer:

$sum = 3n$

where n represents middle number

Step-by-step explanation:

Please refer to the image!

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