Multiplying by Powers of 10 in the Real World

Question

A philanthropist wants to give $2,999 each to 100 different environmental nonprofit groups. How much money will he give away?
2,999 ×
= $
The answer is reasonable because the total amount should be greater than how much is given to just one charity.

Answer 1

To calculate the total amount the philanthropist will give away, you can multiply the amount given to each nonprofit group by the number of groups:

\[ 2,999 \times 100 = 299,900 \]

So the philanthropist will give away $299,900.

The answer is reasonable because if he is giving $2,999 to one charity, then giving to 100 charities should result in a total that is significantly greater than $2,999. In fact, it is greater than $2,999 multiplied by 100, which is $299,900, confirming the calculation is sound.