Question

1+22+33+44+55+66 CORRECT ANSWER: ?. Find unit digit​

Answer 1

We recall the concept of addition.

The addition is combining two or more numbers

Given:

Numbers are $1,22,33,44,55,66$

Adding them we get,

$1+22+33+44+55+66=221$

Answer 2

Answer:

The sum of the numbers is 221, whose unit digit is 1.

Explanation:

1+22+33+44+55+66 = 221

Unit's digit in a number is the digit within the number in the one's location of the number, that is, it is the rightmost digit of the number. For example, the unit's digit of 243 is 3, the unit's digit of 39 is 9.

In this question, the unit's digit of the sum of 1, 22, 33, 44, 55 and 66 is 1.

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