Question

Fiona finds 1 shell on her first day at the beach. Every day that week, she finds twice as many shells as she did the day before. How many shells does Fiona find on the seventh day?

Answer 1

Answer:

128

Step-by-step explanation

Multiply 1 and 2 and keep multiplying the anser by 2.

Answer 2

1x2
2x2
4x2
8x2
16x2
32x2
64x2=128