SaiBook.us Multiplication

Lesson Example Discussion Quiz: Class Homework

Example

Title: Multiplications

Grade: 2-a Lesson: S4-L7

Explanation: The best way to understand multiplications is by looking at some examples. Take turns and read each example for easy understanding.

Examples:

Step: 1a

Multiply 16 x 4

Write the largest number or the multiplicand on the top side and one digit number or the multiplier on the bottom.

$1a$

Explanation: Arrange the numbers vertically.

Step: 1b

Start by multiplying the digit in the one’s place of the bottom number by the digit in the one’s place of the top number,i.e., \$6 \times 4 = 24\$.
Write down 4 and carry over 2 to the tens place.

$1b$

Explanation: Start by multiplying the ones place, i.e., 6 x 4 = 24. Then carry over 2 to the preceding ten’s column and write 4 below the one’s column.

Step: 1c

Now, multiply the number in the tens place number by 4, i.e., 1 × 4 = 4 tens.
Finally, add 2(carry over) + 4= 6. Write 6 at the tens place.
Therefore,16 x 4 = 64.

$1c$

Explanation: In this step, multiply the digit at the tens place number by 4. 1 × 4 = 4 tens.Now, 4 + 2(carry over) = 6 tens. Hence, 16 x 4 = 64.