Adding
What is 1+1?
2
What is 8-1?
7
3 tens and 4 ones
34
What is 10+10?
20
What is 5+6?
11
What is 7-2?
5
One tens and 3 ones
13
What is 20+20?
40
What is 9+5?
14
What is 10-3?
7
How many ones are in 23?
3
What is 30+2?
32
What is 9+9?
18
What is 6-5?
1
How many tens are in 6?
0
What is 12+12?
24
What is 10+5?
15
What is 18-10?
8
How many ones are in 45?
5
What is 10+3?
13