Addition
50+70
What is 120
100-88
What is 12
10x1
What is 10
11x6
What is 66
300+600
What is 900
700-300
What is 400
5x5
What is 25
300+700
What is 1,000
500+500
What is 1,000
What is 400
10x10
What is 100
12-11
What is 1
123,400+123,300
What is 246,700
1,000-300
What is 700
12x12
What is 144
42/7
What is 6
110+100
What is 210
30,000-100
What is 29,900
What is 10,000
10x7
What is 70