Page 69 - Maths Class 03

Step 2 : Multiply the tens digit by 9. H T O
1
4 x 9 = 36 tens = 3 hundreds 6 tens
4 2
Now, 3 hundreds 6 tens + 1 ten (carry over) x 9

= 3 hundreds 7 tens. 3 7 8

Write 7 in tens column and 3 in hundreds column.

Thus, 42 x 9 = 378.

Practice - 4.2
Practice - 4.2
Practice - 4.2
Practice - 4.2
Multiply the following.

1. H T O 2. H T O 3. H T O 4. H T O

3 8 8 5 3 6 9 7
x 8 x 3 x 7 x 7

5. H T O 6. H T O 7. H T O 8. H T O
7 6 9 4 9 2 8 3

x 5 x 5 x 2 x 6

Property of Multiplication

Changing the order of two factors does not change the product.

Two ways of thinking about the stars are shown below.

I see 5 groups. I see 3 groups.

Each group contains 3 stars. Each group contains 5 stars.

There are 5 x 3 stars in all. There are 3 x 5 stars in all.

Mathematics-3 69