CAHSEE Math 6.3 Number Sense

we can use a number line and do some simple conversions...

...er, these conversions...

...and that we know what absolute value means.

To refresh our memories... absolute value is just the quantity of units of any number

from 0 on the number line.

Doesn't matter whether we're going in a positive or negative direction -- it's

only about how far we travel. So let's start by just converting these

numbers into decimals, so they'll fit.

Look through the potential answers.

A is -1 tenth, or -.1, and it goes here on the line.

But since it's only the absolute value we care about, we'll put it on the positive side.

B is negative .05, but on the positive side of the line it goes here --

and is clearly less than .1.

C is .02 and goes here and yeah, if you haven't figured it out by now, we can ignore the minus signs.

And finally we have D at .01 and it goes here.

So the answer is A.

Point one is furthest away from the origin and has the biggest absolute value.