Multiplying by 10, 100

Wala: Multiplication by 10 and 100.

L.O: Identify rules governing multiplication of whole numbers by 10 and 100.

Multiplication table.

Table 5

Modelling.

1. To multiply any number by 10, just tag ONE zero on the end.

2. To multiply any number by 100, just tag TWO zeros on the end.

Examples.

1) 10 × 481 =

2) 100 × 47 =

3) 10 × 800 =

4) 20 × 8 =

5) 200 × 7 =

NIM page page 85

Group 1 - Number 1 a - d

Group 2 - Number 1 e - i

Group 3 - Number 2 a - i

Group 4 - Number 3 - 6

Group presentation.

Each group presents their findings.

What have you learned?

Homework.

Workbook page 50