59 - 21 +61-29+31-39
don't use calculator
Answers
Answered by
1
Answer:
62
Step-by-step explanation:
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Answered by
2
Step-by-step explanation:
59 - 21 + 61 - 29 + 31 - 39
=(59+61+31) - (-21-29-39)
= 151 - 89
= 62
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