Add Whole Numbers

Add Whole Numbers

Add Whole Numbers Subtract Whole Numbers Multiply Whole Numbers Divide Whole Numbers
Add Fractions Subtract Fractions Multiply Fractions Divide Fractions
Add Decimal Numbers Subtract Decimal Numbers Multiply Decimal Numbers Divide Decimal Numbers
  Measurements Arithmetic Main Page Electrician Math Home

Adding Three Digit Numbers

Adding two three digit numbers (for example 529 + 733) involves several steps.

  • Place one number above the other so that the hundreds, tens and ones places are lined up. Draw a line under the bottom number.
    
    529
    733
    
    
  • Add the ones place digits (9 + 3 = 12). This number is larger than 10 so place a one above the tens place column and place the two below the line in the ones place column.
    
     1
    529
    733
      2
    
  • Add the tens place digits (1 + 2 + 3 = 6) and place the answer below the line and in the tens place column.
    
    529
    733
     62
  • Add the numbers in the hundreds place column (5 + 7 = 12) and place the 2 below the line and before the other number below the line. Place the 1 from the twelve above the thousands place column.
    
    1
     529
     733
     262
  • The thousands place column only has a 1 in it which should be placed below the line in the thousands place column.
    
      529
      733
     1262

 

Calculator Practice

Adding numbers is a task everyone does daily. Practice without a pencil and scratch paper builds brain connections. The exercises given are intended to be used as a learning tool to improve mathematical manipulation, and also as practice in the accurate use of a calculator.

Find a practice worksheet HERE.

Find audio support HERE.

Addition Table
This addition chart should be recited from memory without reference to strengthen addition principles and memory connections.
Directions: Add each number on the left side of the table to each number across the top of the table. Where the lines interest is the sum of these two numbers. Look for patterns to aid memorization.
 
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
7
8
9
10
11
2
3
4
5
6
7
8
9
10
11
12
3
4
5
6
7
8
9
10
11
12
13
4
5
6
7
8
9
10
11
12
13
14
5
6
7
8
9
10
11
12
13
14
15
6
7
8
9
10
11
12
13
14
15
16
7
8
9
10
11
12
13
14
15
16
17
8
9
10
11
12
13
14
15
16
17
18
9
10
11
12
13
14
15
16
17
18
19
10
11
12
13
14
15
16
17
18
19
20
 

Many electrician workbooks and practice exams are now available 
as digital downloads for immediate use. 
Click HERE to see what is available.

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