What is the smallest three-digit number that is divisible by 3? Explain how you know without multiplying or dividing.

Question

What is the smallest three-digit number that is divisible by 3? Explain how you know without multiplying or dividing.

Answer 1

smallest 3 digit number is 100

to be divisible by 3, the digits have to sum to 3

that would be 102

100 sums to 1

101 sums to 2

102 sums to 3 Bingo, without any multiplication or division, Just a tiny bit of additon