Katrina and her family received 147 pieces of chocolate packed in boxes of 21. Her family ate 3 boxes of chocolate. How many boxes are left? Step by step explanation. Pls help!

Respuesta :

4 boxes left because 147 divided by 21 equals 7.
Then 7 - the boxes they are which are 3 equals 4
Katrina and her family have 4 boxes left.

you take 147/21 to get 7 boxes and then you take 7-3 to get 4