A counter example is a disproving of an answer. The counterexample to this is basically your saying if you have two nonzero digits in the tenths place and subtract it, you'll always get a nonzero digit in the answer. but if you have 560.4 - 430.4, then you'll get 130.0. there is a zero in the tenths place. I just disproved that you will always get a nonzero digit in the tenths place. 4 - 4 = 0. the 4s represent the tenths place in each of the 4s in the problem. walah. :P
Three - all nonzero digits are significant.
Yes.
Five. All nonzero digits are significant and zeros in between significant digits are always significant.
Five. All nonzero digits are significant and zeros in between significant digits are always significant.
Four - all nonzero digits are significant.
Six. All nonzero digits are significant and zeros in between significant digits are always significant.
Three - all nonzero digits are significant.
Three. All nonzero digits are significant.
Three. All nonzero digits are significant.
Five. All nonzero digits are significant.
Three - all nonzero digits are significant.
Two. All nonzero digits are significant.
Five. All nonzero digits are significant and zeros in between significant digits are significant.
Yes.
by using decimals
Five. All nonzero digits are significant and zeros in between significant digits are always significant.
Five. All nonzero digits are significant and zeros in between significant digits are always significant.