Solution:
To solve the mathematical problem in the image, we'll add up the numbers presented:23 + 20 + 19 + 22 + 18 + 21Let's do the addition step by step:1. First, add the tens to make it easier: $$ 20 + 20 + 10 + 20 + 10 + 20 = 100 $$2. Now, add the leftover units: $$ 3 + 9 + 2 + 8 + 1 = 23 $$3. Add both results together: $$ 100 + 23 = 123 $$The sum of the numbers is 123.