Addition of 3-Digit Numbers using Expanded Form

Here we will learn addition of 3-digit numbers using expanded form.

Let's try to solve the following example:

1. Add 326 and 143.

Solution:

      326   =    3 hundreds + 2 tens + 6 ones

  + 143   = + 1 hundred   + 4 tens + 3 ones

    Sum   =    4 hundreds  + 6 tens + 9 ones = 469

  2. Add 372 and 217 using expanded form.

Solution:

      372   =     3 hundreds + 7 tens + 2 ones

  + 217   = +  2 hundreds + 1 ten   + 7 ones

    Sum   =     5 hundreds + 8 tens  + 9 ones   = 589


3. Add 701 and 295 using expanded form.

Solution:

      701   =     7 hundreds + 0 tens   + 1 one

  + 295   = +  2 hundreds + 9 tens   + 5 ones

    Sum   =     9 hundreds + 9 tens    + 6 ones     = 996


4. Add 635 and 260 using expanded form.

Solution:

      635   =     6 hundreds + 3 tens   + 5 ones

  + 260   = +  2 hundreds + 6 tens   + 0 ones

    Sum   =     8 hundreds + 9 tens    + 5 ones     = 895

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