Look for a pattern #5

LP #5

Hints and answers

Two parts today:

Part 1: Fill in the missing numbers in the table with the units (ones) digit of the corresponding power of 2. For example, since 28 = 256, there is a 6 (the ones digit of 256) under 28 in the table. Look for a pattern!

Power of 2

21

22

23

24

25

26

27

28

Units digit

2

4

?

?

?

?

?

6

Part 2: Now use your pattern to predict the units digit for these:

212

236

29

225

239

242


As always, be sure to explain the work you did to arrive at your answers!