Upcoming lesson · 65 of 98
AMC 8
Digit Cycles
This lesson is part of the course plan. Its explanations and practice are being prepared.
What this lesson will cover
- Find the repeating cycle of a units digit under repeated multiplication
- Use the cycle length to find a units digit for a large exponent
- Apply digit-cycle reasoning to sums and products of powers
40 minutes planned · Difficulty 4/10