Page 2 - 6.5. Multiplication by a 2 digit number without regrouping - Copy

Multiplication of 2 digit number by a 2 digit number

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