Multiply Whole Numbers
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
|
|
