Breaking Down 3-Digit Addition Strategies

What is the sum of 189 and 608?

• 799

• 797

• 789

• 798

Which digit represents the hundreds place in 608?

• 6

• None

• 0

• 8

How many tens are there in 189?

• 18

• 1

• 8

• 9

What is the correct representation of 608 in terms of ones?

• 0 ones

• 8 ones

• 60 ones

• 80 ones

Why is the first choice correct for the addition problem 189 + 608?

• It has extra tens.

• It ignores zeros.

• It correctly sums ones and hundreds.

• It doubles the hundreds.

What is the sum of 525 and 379?

• 903

• 914

• 895

• 904

Which digit is in the tens place for the number 379?

• 7

• 3

• None

• 9

What is the correct breakdown of 525 in terms of place value?

• 50 + 20 + 5

• 500 + 20 + 5

• 5 + 2 + 5

• 500 + 2 + 5

Why was the last choice incorrect for the problem 525 + 379?

• It used wrong place values.

• It subtracted instead of adding.

• It added extra hundreds.

• It ignored the ones place.

Which of the following represents the correct addition of the ones place in 525 + 379?

• 9 + 5

• None of the above

• 5 + 9

• 5 + 7