ACT Math 2.4 Pre-Algebra
ACT Math: Pre-Algebra Drill 2, Problem 4. Which of the following numbers is largest?
|Foreign Language||Arabic Subtitled|
Absolute value and ordering numbers by value
Ordering numbers from least to greatest and greatest to least
|Product Type||ACT Math|
First we have the absolute value of negative 7, which is just... 7.
7 and 3/8 -- ok, so we need to decimalize and we divide 8 into 3.
So three divided by 8 is 0.375... so 7.375. So it lives here.
7.5 is already decimalized for us. Woot. It lives here.
OK, now we have 7 and 1/12 -- well... just looking at this number, we don't need to
go through the hassle of doing the math.
We know 1/12 is less than 1/8, which we just did, and this one will be even smaller...
...so let's just punt it.
And lastly, we have 4/9 -- well... we know 4/8 is one-half, right?
But here we have 4/9, so we know it'll be LESS than a half...
or smaller than the 7.5 number here.
We don't have to blast out the math here either.
The largest is 7.5... and the answer is C.
As in, "Chewbacca's feeling left out."