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МатематикаВопрос:
Calculate the value of the expressions.
Ответ:
Решение:
1. 500 - 40 - 1 = 459
630 - 30 + 1 = 601
675 - 5 - 1 = 669
300 + 99 + 1 = 400
400 + 21 = 421
421 - 400 = 21
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