Question

Give a set of $10$ bingo chips with the numbers $0-9$ to each student.

$\overline{)0}\overline{)1}\overline{)2}\overline{)3}\overline{)4}\overline{)5}\overline{)6}\overline{)7}\overline{)8}\overline{)9}$

Use the chips $0-9$ as follows.

What is the sum of all the digits $?$

Answer 1

The sum of all the digits $=0+1+2+3+4+5+6+7+8+9$

$=45$

Hence, the sum of all the digits is $45$.