Page 2 - PPT 5
P. 2
Multiplication of 2 digit no by a 2 digit no
Without regrouping
• Multiply 12 by 11.
H T O Step-1 Multiply with ones
12 x 1 one = 12 x 1 = 12 (Write in row 1)
1 2
Step-2 Multiply with tens
x 1 1
12 x 1 ten = 12x 10 = 120 ( Write in row 2)
1 2 Step-3 Add row 1 and row 2 together
+ 1 2 0 12 + 120 = 132
= 1 3 2
Thus, 12 x 11 = 132