Show:
+
-
x
100
100+200
What is 300
100
100-200
What is 100
100
2x2
What is 4
200
300+500
What is 800
200
100-0
What is 0
200
5x5
What is 25
300
2+3
5
300
4-4
What is 0
300
4x5
What is 20
400
4+5
What is 9
400
6-4
What is 2
400
2x9
What is 18
500
6+7
What is 13
500
8-5
What is 3
500
5x7
What is 35