Page 80 - Maths Skills - 7

78 Maths

INTEGRATED QUESTION

G. Social Science Vs Maths
About 71% of earth’s surface is made up of water bodies like ocean, lakes, and rivers
etc. The remaining 29 per cent of earth’s surface is land, consisting of continents and
islands. The table given below shows the approximate fraction of landmass occupied
by different continents.

Look at the table given below and answer the following questions.

Name of Continents Africa Antarctica Asia Australia Europe North America South America

Approximate fraction 1 9 3 11 7 33 3
of earth’s landmass 5 100 10 200 100 100 25

1. Arrange the continents according to the area of their landmass in ascending order.

2. Total area of earth’s landmass covering 7 continents is about 148 million square km. What is the area of
land covering each of the 7 continents?

3. What is the difference between the landmass covered by North America and Australia?

HOTS
4
1. Find a rational number which in its standard form is equal to 5 and the sum of its numerator and
denominator is 27.

2. Jasmin claims “If we have two positive rational numbers, the one with the greater denominator is smaller”.
Justify or contradict by giving examples?
3. Arushi, Krish, Vani and Nikhil divided a box of sweets weighing 4 2 kg equally among themselves. How
many kg of sweet did each get? 5

Word Stock

Rational Fraction Integer Natural Equivalent Terminating
Repeat Compare Require Inverse Reciprocal Divide