1.

Give a rough estimate: a)489+243+5439. b)9437-234 "solve the problem"​

Answer»

a) 489 = 490    243 = 240  5439 = 5440 490 + 240 + 5440 = 6170b) 9437 = 9440      234 = 240   = 9680Step-by-step EXPLANATION:



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