Yes, those answers are correct, but is it really much easier to take 48% of 1500 compared to 48.3?
The real A is 724.5.
Another way to do it "in your head" is to take 50% of 1500 (750) and subtract another 1.7% or 1/60 of 1500 (which is 25), leaving you with 725.
I wanted someone to tell me if I got these problems correct.
6.5% of what number is 325?
B= 5,000
In the next problem I had to estimate the amount. I did this by changing 48.3% to 48%, then I mulitplied it by 1500.
What is 48.3% of 1,500?
A=720
Thanks!
2 answers
The purpose of estimation is to avoid real calculations and calculations by calculator.
changing 48.3% to 48% and then multiplying defeats the purpose, especially if you used a calculator.
I think they wanted you to think 48.3% is close to 50%, which is 1/2 of something
so 1/2 of 1500 is 750
changing 48.3% to 48% and then multiplying defeats the purpose, especially if you used a calculator.
I think they wanted you to think 48.3% is close to 50%, which is 1/2 of something
so 1/2 of 1500 is 750
3 answers