Question

estimate the following
(a) 728+6381

Answer 1

Answer:

Step-by-step explanation:

728    ------>     700  ( 728 lies between 700 and 800, 28 < 50 so estimate          

                                                                                             downward = 700  )

6381  ------->  6400  ( 6381 lies between 6300 and 6400, 381> 350, so    

                                                                                 estimate upward  = 6400 )

728 + 6381 =  7100

Answer 2

Step-by-step explanation:

700+6400=7100 how it is help you