MULTIPLICATION OF NUMBERS BY 2-DIGIT NUMBERS
Example 1 multiply 25 by 12
Method 1: column form method 2: Expanded form
2 5 25 x 12 = 25 x (10 = 2)
x 1 2 = (25 x 10) = (25 x 2)
2 5 0 (25 x 10) = 250 + 50
+ 5 0 (25 x 2) = 300
3 0 0
EXERCIES 1: Multiply the following
- 53 x 50 84 x 10
- 97 x 10 96 x 40
- 67 x 50 67 x 50
- 87 x 20 64 x 30
- 57 x 40 64 x 40
- 56 x 10 95 x 20
- 86 x 20 84 x 50
- 99 x 50 75 x 10
- 89 x 30
- 75 x 40
EXERCISE 2: multiply the following
- 89 x 46
- 45 x 37
- 56 x 17
- 88 x 32
- 36 x 35
- 78 x 18
- 76 x 26
- 29 x 27
- 79 x 49
- 75 x 46
See also