Grade 3 - Mathematics 1.12 Multiplication with One Digit - 3
Method:
Start with the single digit number.
Multiply the single digit number and the number in ones place of the 2 digit number.
If the result is more than 9, then write the tens digit of the result as a carry above the tens digit of the 2nd number.
Multiply the single digit number and the number in tens place of the 2 digit number and add the carry to the product.
Example: 6 x 12 = ?
Single digit number is 6 and the two digit number is 12.
6 x 2 = 12.
12 is more than 9. Write 2 under ones place and carry 1 to the tens place.
6 x 1 = 6. Add carry to this result. 6 + 1 = 7. Write 7 below tens place.
Answer: 72 Directions: Multiply the following and write at least 10 examples of your own for multiplication of double digit number by a single digit number.