Give rough estimation by rounding off to nearest hundred and also a closer estimate by rounding off to nearest tens @ - 439 plus 334plus 4317 b- 489348-48368
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Answer:
a)439 round off to 400
334 round off to 300
4317 round off to 430
estimated sum=5000
b)108734round off to 108700
47599 round off to -47600
estimated difference =61100
c)8325 round off to 8300
491 round off to -500
estimated difference =7800
d)489348 round off to 489300
47599 round off to -47600
estimated difference =441700
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