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uranmaximum [27]
1 year ago
15

Find the next number in the sequence: 1, 1, 2, -1, 1, -2, -1

Mathematics
1 answer:
Hoochie [10]1 year ago
4 0

answer:-1

reason :

Once the numbers add up, once they decrease

what does it mean?

it mean that:

The first and second numbers we add are one, they become two

The second and third numbers are one and two. We subtract the second number from the third number, it becomes negative one and ...

1+1=2

1-2=-1

2+(-1)=1

-1-(+1)=-2

1+(-2)=-1

so we should - them

-2-(-1)=-1

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