Section 1.3 Homework Hints
Problems 25-30
Estimation is a skill that is difficult to learn, and even more difficult
to teach. You must build your estimation skills by practice. You need
to work at estimating every time you work a calculation problem. You
cannot learn good estimation skills if you do not practice them on a
daily basis.
After estimating, carry out the arithmetic calculations (it is ok to use a calculator)
and then compare your estimates and calculated answers.