Question

How to do it mentally ?

Peter has 20 dollars in his pocket. He buys a 32 ounces vanilla ice cream for 8 dollars. How much is Peter's change?

Answer 1

20 - 8 = 12

Answer 2

Madam can you please explain me .

Answer 3

It's subtraction, how do you explain that?? -_- Hmm, okay, well I do it so you think about it, like 10 - 8 = 2, and then you still have 10, 10 + 2 = 12. Thats the best way I can explain this -.-

Answer 4

Thankyou madam