ICT FOR PRIMARY SCIENCE AND MATHS

Dr Leong mentioned about how to use calculator  in Developing Mental Computation in Maths

For My task:  Explain how to use Multiplication in Doubling Number

Doubling number is using calculator  in constants multiplication. Example 2 x 3 = = =  until display passed 500.

Answers:

Use Writing on Whiteboard:

2 x 3 = 6
6x 3 = 18
18 x 3 =  54
54 x 3 = 162
162 x 3 = 486

**Multiplication of 3 is Doubling Number

Using Calculator:

Step 1: Press 2
Step 2: Pres 3
Step 3: Press"="
Answer will 6

**Press "=" continue the doubling number of 3

Useful Website:



Example of Repeated additional of Multiplication as shown below:

Repeated Addition as Multiplication