Add 945 and 45: Vertical Addition Practice

Video Solution

Solution Steps

00:00 Solve

00:02 Each time we consider joining 2 digits, and then we'll place

00:05 Let's start by combining ones with ones

00:08 We'll place the ones, add 1 to the tens

00:12 We'll combine tens with tens, remember to add 1 to the calculation

00:17 We'll place tens in tens, add 1 to hundreds

00:21 We'll place 0 in the missing digits

00:24 We'll combine hundreds with hundreds, remember to add 1

00:27 We'll place the hundreds in hundreds, add 1 to thousands

00:32 We'll place 0 in the missing digits

00:35 We'll combine thousands with thousands, and place in thousands

00:38 And this is the solution to the question

Step-by-Step Solution

To solve this problem, we need to add 945 and 45 using vertical addition. We'll do this step by step:

Step 1: Write both numbers vertically, aligning them by place value:

$\begin{array}{c} 945 \\ +45 \\ \underline{\phantom{000}} \end{array}$

Step 2: Start adding from the rightmost column (the units):

Add the units place: $5 + 5 = 10$ . Write 0 in the units place and carry over 1 to the next tens place.

$\begin{array}{c} &1 \\ 945 \\ +45 \\ \underline{\phantom{00}0} \end{array}$

Step 3: Move to the tens place and add, including the carryover:

$\begin{array}{c} 945 \\ +45 \\ \underline{\phantom{0}90} \end{array}$

Step 4: Finally, add the hundreds place:

$\begin{array}{c} 945 \\ +45 \\ \underline{990} \end{array}$

Therefore, the sum of 945 and 45 is $990$ .