Question

What should be added to -11 to get 20?​

Answer 1

Answer:

20 - (-11)

= 20 +11

= 31.

therefore, 31 is the number which should be added to (-11) to get 20

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Answer 2

Let the required no. be x

$\rightarrow$ (-11) + x = 20

$\rightarrow$ x = 20 + 11

$\rightarrow$ x = 31

Hence, the required no. is 31

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