Assign correct significant figure for each of values and
complete calculations with right SFs A. 0.0010
B. 1.0010
D. 1.020×10^4
E. 0.001 + 3.01
F. 0.80 × 60.2
G. 1.01×0.2+1.53

Question

Pls help me to find significant figure for each of the following values and complete the calculations with right significant figures

A. 0.0010
B. 1.0010
C. 1.10010
D. 1.020×10⁴
E. 0.001 + 3.01
F. 0.80 × 60.2
G. 1.01×0.2+1.53

davidap · Answer

A. 0.0010 = 2 SFs
B. 1.0010 = 5 SFs
C. 1.10010 = 6 SFs
D. 1.020×104 = 4 SFs

E. 0.001 + 3.01
0.001 = 3 decimal places
3.01 = 2 decimal places

So, final result should have 2 decimal places.
0.001 + 3.01 = 3.01 → 3 SFs

F. 0.80 × 60.2
0.80 = 2 SFs and 60.2 = 3 SFs

So, final result should have 2 SFs
0.80 × 60.2 = 48 → 2 SFs

G. 1.01×0.2+1.53
Firstly, 1.01 × 0.2,
1.01 = 3 SFs and 0.2 = 1 SF
The result should be of 1 SF,
So, 1.01 × 0.2 = 0.2

Now, the remaining part is, 0.2 + 1.53,
0.2 = 1 decimal place and 1.53 = 2 decimal places

The final result should have 1 decimal place,
so, 0.2 + 1.53 = 1.7
Hence, 1.01 × 0.2 + 1.53 = 1.7 → 2 SFs

Answers