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Posted by on Tuesday, April 17, 2012 at 5:29pm.

thank you so much! i still don't get it when my teacher said you had to multiply it first. then subtract it and add something.thank you though.

  • to ms.sue - , Tuesday, April 17, 2012 at 5:30pm

    Was it a problem like this?

    How much did Celest pay for a shirt that was originally $20 but was marked 10% off?

    100 - 10 = 90

    0.9 * 20 = 18

  • to ms.sue - , Tuesday, April 17, 2012 at 5:39pm

    Another way to do that problem?

    0.1 * 20 = $2.00

    20 - 2 = 18

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