Smt. Sulochanadevi Singhania School, Jekegram, Thane.

Standard 8 – Approximation Worksheet (Date : 4th Aug. 2015)

1) Find the number of significant figures in each of the following

measurements :

a) 5.07 m

b) 7.02040 g

c) 0.05003 l

d) 358 kg

e) 8.0400 ml 2) Round off the following measurements :

a) 0.09403 g correct to one significant figure

b) 12.070 mm correct to three significant figure c) 6.04193 mg correct to two significant figure

d) 0.0065017 l correct to four significant figure

e) 3.0999 kg correct to two significant figure

3) Round off the following measurements :

a) Rs. 559.59 to the nearest rupee b) 28.1385 m to the nearest cm

c) 10.2394 g to the nearest mg

d) 83.465 l to the nearest l

e) 3.0999 cm to the nearest mm

4) Round off the following :

a) Rs. 742.58 to the nearest tenth b) 32.867 m to the nearest hundredth

c) 0.09 g to the nearest tenth d) 6.6112 l to the nearest thousandth