Significant Figures in Sum

Q.

Arrange the given decimal numbers in order of size, starting with the largest: $0.0710,0.0171,0.1007,0.0071,0.0107$.

Q.

Add 3.1421 , 0.241 and 0.09 and give your answer with correct precision

1. 3.47

2. 3.4

3. 3.473

4. 3.4731

Q.

Illustration: The mass of a box is 2.3 kg. Two marbles of masses 2.15 g and 12.39 g are added to it. Find the total mass of the box to the correct number of significant figures.

1. 2 kg

2. 2.310 kg

3. 2.31 kg

4. 2.3 kg

Q.

Find A, B and C [3 MARKS]

$\begin{array}{c}4A\\ +98\\ CB3\end{array}$

Q.

Arrange the given decimal numbers in order of size, starting with the largest: $0.895,0.806,0.860,0.868,0.856$

Step:1) Firstly, compare each decimal number with integer part then compare with decimal part.

Step:2) Write the decimal numbers in the given order.