### Common Core State Standard

### 7.NS.A.1.c

Understand subtraction of rational numbers as adding the additive inverse, *p* – *q* = *p* + (-*q*). Show that the distance between two rational numbers on the number line is the absolute value of their difference, and apply this principle in real-world contexts

*CCSS: 7.NS.A.1.c*

Take an alien flying saucer for a spin and collect numbered fuel pods that answer the integer subtraction problems. Collecting fuel pods keep your saucer flying. Try flying as long as you can.

*CCSS: 7.NS.A.1.b, 7.NS.A.1.c, 7.NS.A.2.a, 7.NS.A.2.b*

Race your motorcycle to the finish line. Race against some tough competitors and try and beat them all by answering problems with positive and negative numbers.

*CCSS: 7.NS.A.1.b, 7.NS.A.1.c*

The integer version of our popular MathNook boxing game. Use your positive and negative integer skills to beat your opponent and go on to the next opponent who is a little tougher. Beat all opponents to become the integer boxing champ.