Solve 569 + 431: Three-Digit Addition Practice

Video Solution

Solution Steps

00:00 Solve

00:03 Each time consider combining 2 digits, and then place

00:06 Let's start by combining ones with ones

00:09 Place the ones, add 1 to tens

00:12 Combine tens with tens, remember to add 1 to the calculation

00:17 Place tens in tens, add 1 to hundreds

00:23 Combine hundreds with hundreds, remember to add 1

00:28 Place hundreds in hundreds, and add 1 to thousands

00:32 Place 0 in the missing digits

00:35 Combine thousands with thousands, remember to add 1

00:38 Place in thousands

00:41 And this is the solution to the question

Step-by-Step Solution

To solve this problem, let's use vertical addition as follows:

Step 1: Align the numbers by their place values:
$569$
+ $431$
Step 2: Start with the units column:
Add $9 + 1 = 10$ . Write 0 in the units place and carry over 1 to the tens column.
Step 3: Move to the tens column:
Add $6 + 3 = 9$ , then include the carried 1, making it $9 + 1 = 10$ . Write 0 in the tens place and carry over 1 to the hundreds column.
Step 4: Finally, the hundreds column:
Add $5 + 4 = 9$ , then add the carried 1, making it $9 + 1 = 10$ . Write 0 in the hundreds place and put 1 in the next column (thousands, a new place in this context).

The sum of the numbers is, thereby:
$1000$

Therefore, the total is $1000$ .