Question

If pizzas cost $9.83 per pizza, estimate how much money you would need to buy 18 of them.

Your answer does not need to be exact, so please do NOT use a calculator and please do not put a $ sign in your answer.

Answer 1

180

Explanation:

because it doesn't has to be exact you can do: 10 × 18 = 180

Answer 2

180

Explanation:

This is a good question to keep in mind. When you do use a calculator the answer to this estimate will tell you if your work on the calculator is correct.

round the cost of the pizza to 10

18 * 10 = 180 dollars. So you should get an answer that is under 180 dollars -- about 3 dollars short. (0.17 * 18 which is another guess).

Now pick up your calculator and do the math. It comes to 176.94

If you do any grocery shopping, this is a good skill to have.