Multiply Whole Numbers

Multiply 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

Multiplying a two digit number by a one digit number

How to multiply a two digit number by a one digit number (for example 59 + 7).

  • Place one number above the other so that the ones' place digits are lined up. Draw a line under the bottom number.
    
    59
     7
    
    
  • Multiply the two ones' place digits (9 * 7 = 63). This number is larger than 9, so place the six above the tens' place column and place the three below the line in the ones' place column.
    
    6
    59
     7
     3
    
  • Multiply the digit in the tens' place column (5) by the second number (7). The result is 5 * 7 = 35. Add the 6 to the 35 (35 + 6 = 41) and place the answer below the line and to the left of the 3.
    
     59
      7
    413

 

Calculator Practice

Subtracting 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.

Multiplication Table
This multiplication table should be recited from memory without reference to strengthen multiplication principles and memory connections.
Directions: Multiply each number on the left side of the table by each number across the top of the table. Where the lines interest is the product of these two numbers. Look for patterns to aid memorization.
 
1
2
3
4
5
6
7
8
9
10
1
1
2
3
4
5
6
7
8
9
10
2
2
4
6
8
10
12
14
16
18
20
3
3
6
9
12
15
18
21
24
27
30
4
4
8
12
16
20
24
28
32
36
40
5
5
10
15
20
25
30
35
49
45
50
6
6
12
18
24
30
36
42
48
54
60
7
7
14
21
28
35
42
49
56
63
70
8
8
16
24
32
40
48
56
64
72
80
9
9
18
27
36
45
54
63
72
81
90
10
10
20
30
40
50
60
70
80
90
100
 

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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