Calculate the Sum: Adding 653 and 399 Using Place Value

Question

amp;653+amp;amp;399amp;776amp; \begin{aligned} &653 \\ +& \\ &399 \\ &\underline{\phantom{776}} & \\ \end{aligned}

Video Solution

Solution Steps

00:00 Solve
00:03 Each time consider connecting 2 digits, and then we'll substitute
00:06 Let's start by adding units with units
00:09 We'll place the units, add 1 to the tens
00:13 We'll add tens with tens, remember to add 1 to the calculation
00:16 We'll place tens in tens, add 1 to hundreds
00:21 We'll add hundreds with hundreds, remember to add 1
00:27 We'll place hundreds in hundreds, and add 1 to thousands
00:30 We'll place 0 in the missing digits
00:33 We'll add thousands with thousands, remember to add 1
00:36 We'll place in thousands
00:39 And this is the solution to the question

Step-by-Step Solution

To solve this problem, we'll follow these steps:

  • Step 1: Line up the numbers according to their place values.

  • Step 2: Add the numbers column by column from right to left.

  • Step 3: Carry over any values greater than 9 to the next column.

Now, let's work through each step:

Step 1: Align the numbers vertically by place value:

+     653++399 \begin{array}{c} \phantom{+}~~~~~653 \\ + \phantom{+}399 \\ \end{array}

Step 2: Add the numbers in the ones column (rightmost column):

3+9=12 3 + 9 = 12

The result is 12. Place the 2 in the ones column and carry over 1 to the tens column.

Step 3: Add the numbers in the tens column, including the carry:

5+9+1=15 5 + 9 + 1 = 15

The result is 15. Place the 5 in the tens column and carry over 1 to the hundreds column.

Step 4: Add the numbers in the hundreds column, including the carry:

6+3+1=10 6 + 3 + 1 = 10

Place the 0 in the hundreds column and the 1 also in the next higher column (thousands place).

Therefore, the sum of 653653 and 399399 is 10521052.

Answer

1052