How do I round the numbers 33 and 89 to estimate their sum

30 and 90 is your answer

Step-by-step explanation:

the way you round is if your second number is 4 or less you round down if it's 5 or more you round up so since 33 the second number is 3 it's less than 4 making it 30 and in 89 the number 9 is 5 or more you round up to a 90

30 and 90