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ROUNDING OFF DECIMALS # 3
供稿人: Tate
EXAMPLE :  Round off 3.46823 to 2 decimal places
3.46823  ≈ 3.47

If this number is 5  or  GREATER than 5, 

drop off the 823   and  add one to the 6

 
This means it is closer to 3.47 than 3.46

3.46823

LOOK HERE
Answer

This tells us  we want

only 2 figures after

the point in our answer

 

Round off  6.39748  to 3 decimal places.
Answer ≈ 6.397

LOOK HERE, this digit is LESS than 5,

so just drop off the  48

 

6.39748
Round off to 2 decimal places :
Answer ≈
2.93714
LOOK HERE
Answer ≈
Round off to 2 decimal places
83.293688
Round off to one decimal place
22.4523 ≈
62.3824 ≈
4.7319  ≈
Round off to two decimal places
9.3499   ≈
11.5518 ≈
0.006    ≈
76.092    (1 dec. pl)     ≈
41.007     (2 dec. pl)    ≈
7.039     (1 dec. pl)     ≈
1.6666   (3 dec. pl)     ≈

Round off to the number of decimal places

shown in brackets

4.087      ( 2  d.p.)     ≈

25.3333  ( 1 d.p.)      ≈
0.03049   ( 2 d.p.)     ≈
657.99    (1 d.p.)      ≈

Round off to the number of decimal places

 shown in brackets.

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