Question

Evelyn is making a costume for her school play, She needs to buy 2 yards of cotton fabric at a cost of $3.49 per yard, and 1/2 yard of satin fabric at $5.98 per yard. She has $15 to spend on the fabric. Using mental math, does she have enough money?

Answer 1

`$15` will be enough

Explanation:

To do quick mental math, use estimates for the values,

`$3.49` is only `1c` less than `$3.50` and `$5.98` is only `2c` less than `$6`

`2 xx 3.50 = 7.00`

`1/2 xx 6 = 3.00`

the total cost is about `$10.00`

`$15` will be enough