Fill the blank by selecting the best suitable method of estimation.

The correct option is C Number of toys sold = 10,000 (Estimated to nearest hundreds)
Balloons used in 1 shop = 112
Number of days = 91

So, number of balloons to be used for 91 days = 112 × 91

Rounding off the numbers to their nearest tens:


So, the final result is:


Rounding off the numbers to their nearest hundreds:


So, the final result is:


The actual number of toys sold by the shop in 91 days is:


Comparing the three results, we see:


So, by estimating to the nearest hundreds, the value become close to the actual answer.

∴ Numbers of toys sold approximately will be 10,000 .