Question

Ella sold 37 necklaces for $20 each at a craft fair. She is going to donate half of the money she earned to charity. Use the Associative Property to find how much money she will donate. Include your expression and answer.​

Answer 1

Ella sold 37 necklaces for $20 each at the craft fair. She is going to donate half of the money she earned to charity. Use the Commutative Property to mentally find how much money she will donate. Explain the steps you used.

Solution:

Earning from 1 necklace=$20

Earning from 37 necklaces=$20*37

Half of the earnings= Half of the earnings=$10*37

Now, Applying Commutative Property, a*b=b*a

So, Money she needs to donate= Half of the earnings= 10*37 =37*10

So, Money she donates=$370

the money she will donate=$370

Hope this helps!