Problems of the world economy
Answers are for parents and teachers.
1
Military spending is 4 000 bn dollars and 3% was redirected. How many bn dollars is that?
120
2
A reserve is 1 200 million tonnes and 40 million tonnes are used a year. For how many years does it last?
30
3
World population is 8 000 million; if one in ten people cannot eat enough (conditional), how many million people is that?
800
4
Write two ways to save electricity or water at your school (in agreement with adults).
Switching off the light when leaving a room; closing taps and getting leaks repaired.