Question

pls tell the answers and also the me the method which you are using..... Do all the parts

pls tell it is very important... ​​

Answer 1

Answer:

Step-by-step explanation:

for rounding off to the nearest ones

3.081 = 3.08 ( because 1<5, hence no change)

18.546 = 18.55 (because 6>5 , we add 1 to the previous digit)

9.987 = 9.99 (because 7>5 , we add 1 to previous digit 8)

for rounding off to the nearest tenth

3.081 = 3.10 ( 81>50 , we add 1 to left digit )

18.546 = 18.5 ( 46<50 , no change)

9.987 = 10 ( 87>50 , 1 is added to 9)

Answer 2

Answer:

a:3.1 b:18.5 c:10

in round off if the 2nd present no. after desmelav is more then 5 then increase a +1after in just after des disit,if the vice versa then not chang the disit just after des.