21-21+21-21+21-21+21-21
Answers
Answered by
2
Answer:
Answer is 0 because all 21 will cut according to sign
...
Answered by
0
Answer:
Step-by-step explanation:
(21-21) + (21-21) + (21-21) + (21-21)
= 0 + 0 + 0 + 0
= 0
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