Question

Find approximate answer rounding off each number to the nearest 10 and then find the
difference between exact and approximate answer:
39 + 25 + 13

Answer 1

Rounding off
39 = 40
25 = 30
13 = 10

Therefore, 40+30+10 = 80

39 + 25 + 13 = 72

80 - 72 = 8


Hope you found it helpful!

Answer 2

Answer:

8

Step-by-step explanation:

Round off all the 3 numbers to the nearest tenths

• 39 = 40

• 25 = 30

• 13 = 10

now add all the nearest tenth answer=} 40+30+10 = 80

now add all the original numbers=} 39 + 25 + 13 = 72

and finally subtract both the answers,

=} 80 - 72

=} 8

hope it helped you

have a good day