+1
-1
+2
+10
-10
100

One more than 5. 

What is 6?

100

One less than 5.

What is 4?

100

Two more than 2.

What is 4?

100

Ten more than 10?

What 20?

100

Ten less than 20.

What is 10?

200

One more than 10.

What is 11?

200

One less than 10.

What is 9?

200

Two more than 10.

What is 12?

200

Ten more than 20.

What is 30?

200

Ten less than 50.

What is 40?

300

One more than 24

What is 25?

300

One less than 24.

What is 23?

300
Two more than 24.

What is 26?

300

Ten more than 90.

What is 100?

300

Ten less than 100.

What is 90?

400

One more than 48

What is 49?

400

One less than 48.

What is 47?

400
Two more than 48.

What is 50?

400

Ten more than 44.

What is 54?

400

Ten less than 43.

What is 33?

500

One more than 89.

What is 90?

500

One less than 90.

What is 89?

500

Two more than 100.

What is 102?

500

Ten more than 94.

What is 104?

500

Ten less than 103.

What is 93?