What would be the number in units place of the following expression?
6
The correct answer is 6.
The units digits often follow a repeating pattern (cycle). For example, the units digits of powers of 2 are 2, 4, 8, 6, 2, 4, 8, 6, ... forming a cycle of length 4. For multiplication, as demonstrated in this problem, focusing only on the units digits simplifies finding the final units digit significantly, regardless of how large the numbers are.
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Important Questions from Unit Digit
What is the digit in the unit place of 3 99 ?
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The unit digit in (4) 31 + (36) 81 - (243) 26 is:
