This is quite easy... you must first hazard a guess of the quantity involved and believe with some surety that the judgment you made is close to the actual amount you sumised in the begining, then give it your best shot, if you reckoned right and the figure you arrived at sounds convincing, anybody will believe that your 'aproximate estimate' is just about spot on!
You should probably try to make your best guess and go with your gut instinct
estimate or estimation
Please ask this as two separate questions, one for each word.
how long is a piece of string? What instrument?
you can make it out of a gear
Two Wrights make an airplane.
A day and a half journey
approximately 29.531 days
length 882ft height175 depth 64ft 6in
The aproximate population on July 1. 1863 was 2,400.
It is so easy if you use your calculator: ±7.937
the aproximate there were used 10,000 lamp blubs on the ship
A Bottlenose dolphin can hold their breath for the maximum of 8 minutes and 45 seconds. Aproximate answer. A Bottlenose dolphin can hold their breath for the maximum of 8 minutes and 45 seconds. Aproximate answer.
Dallas elevation is 430 feet (131 meters).
200 USD
It was used to tell the time and knowing the time even the aproximate time is quuite useful
they converse in a manor they see fit for that aproximate time and place
from Detroit to Orlando will be aproximate 2,983 miles