A bag of caramel cookies has 20 cookies inside and a box of cookies has 4 bags in total. How many calories are inside the box if each cookie is 20 calories?
If 1 bag has 20 cookies and a box has 4 bags, then in total there are 20*4=<<20*4=80>>80 cookies inside the box
If 1 cookie has 20 calories and there are 80 cookies in the box, then the box has in total 20*80=<<20*80=1600>>1600 calories
#### 1600