what is 48.3% of 1500. estimate the answer..?

10%<------>150
40%<------>600____a
5%<-------->75_____b
1%<-------->15
3%<--------->45____c
0.3%<----->4.5____d

48.3%<---> a + b + c + d = 724.5

about 720, since 50% would be 750

Just use numbers you can calculate in your head.

50% = 750
1% = 15 -- Note we can easily divide this by 3.
(1/3)% = 5

48.333333333% = 50% - 1% - 2*((1/3)%) = 750 - 15 - 10 = 725

1)
48.3%≈48%
1500 x 48%
= 1500 x 48/100
= 720 or

2)
48.3%≈50%
1500 x 50%
= 1500 x 50/100
= 750

An estimate is called for, not the exact number. Very often we use estimates such as finding 15% or so of a restaurant bill to figure the tip.

In this question, since 48.3% is just shy of 50%, start there. 50% or half, of 1500 is 750. So the estimate should be a little lower than 750.

We could get a little more exact by figuring that 1% of 1500 is 15 and 48.3 is about 1 2/3% short of 50%. This would give us an estimate of 725 since 1 2/3 times 15 is 25 and 750 minus 25 equals 725.

Hope this didn't get too complicated.