Math

Can someone tell me why 9-4^2 = -7?

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asked by Sally
  1. because it will be 9-16 which will equal to -7 due to the fact that 9 is smaller than 16 and when you subtract a small number from a big number you get a negative number.

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    posted by Vanessa
  2. 4^2 = 16

    9 - 16 = -7

    http://www.mathsisfun.com/number-line.html

  3. My explanation might be a little confusing but let me know if you need help. I might be able to explain it better. Or try using a calculator when you plug in 9-16 it will give you -7. why? because you are plugging 9 (small number)first and than the 16 (large number).

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    posted by Vanessa
  4. Oh okay thank you and I'm not suppose to use a calculator when doing this.

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    posted by Sally

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