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melamori03 [73]
2 years ago
14

Plzzz help me with thiss

Mathematics
1 answer:
denis23 [38]2 years ago
3 0

Answer:

Step-by-step explanation:

rather than doing all of the sums, you should just learn the formula (for the pattern)

it is <u>n(highest + lowest)</u> where n is number of numbers

             2

for example 2+3+4+5+6 = 20

<u>5(6+2)</u> =  20

  2

~~~~~~~~~~~~~~~~~~~~

1+2+3+4+5+6+7+8 = 36

<u>8(9)</u> = 72/2= 36

2

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