Solutions

1. 95 (Written Solution)

   One way to solve this problem is to think in terms of place values.

   We have:

   6 tens or 60

   3 tens or 30

   2 ones or 2

   3 ones or 3

   The following bars represent 6 tens. Each bar has 10 rectangles for a total of 60 rectangles.

   

   The following bars represent 3 tens. Each bar has 10 rectangles for a total of 30 rectangles.

   

   Now, add 6 tens plus 3 tens or 60 + 30.

   

   Now, there are 9 tens, for a total of 90 rectangles.

   

   Then we can add our ones

   2 + 3 = 5 or 5 ones

   

   The answer is 9 tens and 5 ones, which is 95.

   

2. 550 (Written Solution)

   Using place values, the problem 525 + 25 is shown below.

   

   Start by adding the numbers in the ones column. The first answer is 10. Put the 0 in the ones column and carry the 1 into the tens column.

   

   Continue by adding the numbers in the tens columns. 1 + 2 + 2 = 5

   Put the 5 in the tens column.

   

   Finally, add the hundreds column. In this column, we have a 5 and nothing else. Hence the answer here is 5.

   

   The answer to 525 + 25 is 550.

3. 132 (Solution Video | Transcript)
4. \(1037\)
5. \(941\)
6. \(2525\) (Solution Video | Transcript)