Question

6. Use plus signs (+) between digits in 123456789 to have a sum of 90.

Answer 1

Step-by-step explanation:

12+3+45+6+7+8+9=90

So,the answer is here

Answer 2

Given: $123456789$

Solution:

Add plus sign (+) in between the digits to have a sum of 90.

Understand that this question is solved by hit and trial method, i.e., randomly adding plus sign after the numbers until the required sum 90 is obtained.

$123456789=12+3+45+6+7+8+9$

                $=90$

Hence, the required equation will be,

$12+3+45+6+7+8+9=90$.