addition | subtraction |
---|---|
What is 10+10
20
|
|
What is 6+1
7
|
What is 6-10
4
|
What is 2+7
9
|
What is 7-9
2
|
What is 8+9
17
|
What is 24-4
20
|
What is 20+20+8
48
|
What is 16-1-1-1-1-1-1
10
|