10. Three mark exercise problems II

1. Estimate the sum of \(157826\) and \(32469\) rounded off to the nearest ten thousand.

 

 

Sum \(=\)

 

2. The population of a city was \(43,43,645\) in the year \(2001\) and \(46,81,087\) in the year \(2011\). Estimate the increase in population by rounding off to the nearest thousand.

 

 

Increase in population \(=\)