A bakery used 9 cups of flour to make a full size cake. If they wanted to make a cake that was 1/10 the size, how many cups of flour would they use?

(1/10) * 9 = ?

To find out how many cups of flour the bakery would use to make a cake that is 1/10 the size of a full-size cake, we need to find 1/10 of 9 cups.

To calculate 1/10 of a number, we divide that number by 10. So, dividing 9 cups by 10 would give us:

9 cups รท 10 = 0.9 cups

Therefore, the bakery would use 0.9 cups of flour to make a cake that is 1/10 the size of a full-size cake.