Page 2 - Lesson Note 4
P. 2
Multiplication by 10,100 and 1000
Learning Objectives- Students will learn to do multiplication by10,100 and 1000.
To multiply a number by 10, we simply put a zero to the right of the product.
EXAMPLE: 23 x10 = 23 x 1 ten
= 23 tens = 230
To multiply a number by 100 or 200, 300, 400,……..900, we simply put two zeros at the right of the
product.
Examples: 9 x 100 = 900
To multiply a number by 1000 or 2000, 3000, 4000 etc. We simply put three zeros to the right of the
product.
Examples: 2 x 1000 =2000
LEARNING OUTCOME: Students are able to do multiplication by10,100 and 1000.
