Question

Write the units of the following number 21

Answer 1

Answer:

20 it's your answer (20)

Answer 2

Answer:

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1

Step-by-step explanation:

As when we when multiply the Last digit of 21 which is 1 , three times u get 1.

As when we when multiply the Last digit of 21 which is 1 , three times u get 1.1×1×1=1