## Whole Numbers

Whole numbers include zero and the counting numbers (1, 2, 3, 4...). Therefore the "higher" number is always greater. If we picture a number line the number that is

**farther right will always be greater.**In this case**11**is greater than**5**.##

Integers

Integers include all the whole numbers and the negative whole numbers too. Since we're using a number line we can see that all positive numbers (and zero) are greater than any negative number. Here we can see that 2 is greater than -6.

If both numbers are negative, the "smaller" (absolute value) number will be greater, since it will be farther right. As you can see, -3 is greater than -10.

##

Sums, Sum & Difference, and Products

The key to these levels is to calculate the left card first (it appears a fraction of a second before the right) and then "store" that answer while you calculate the right side and compare. Don't guess, since it's -3 point for every wrong answer.

##

Ruler Fractions

This level is made of fractions with denominators of 2, 4, 8, and 16. Therefore finding a common denominator is easier, since it will always be 4, 8 or 16. The number line still works if you prefer.