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Sunday, 28 November 2004
Standard Index Form
Change a Number into SIF
Change SIF into a Normal Number
Multiply and Divide SIF Numbers
Change a Number into SIF
23000000 = 2.3 X
7
10
The number must be bigger
than 1 and smaller than 10
2
.
3
1
0
2
0
3
0
4
0
5
0
6
0
7
Change SIF into a Normal Number
5.3 X
5
3
1
7
10
0
2
0
3
= 53000000
0
4
0
5
0
6
0
7
Multiply SIF Numbers
2 X 103 X 3 X 104
Put the numbers and tens together
2 X 3 X 103 X 104
Multiply the numbers add the powers
6 X
3+4
10
= 6 X
7
10
Divide SIF Numbers
(8 X 109) ÷ (2 X 105)
Put the numbers and tens together
(8 ÷ 2) X (109 ÷ 105)
Multiply the numbers add the powers
4 X
8-5
10
= 2 X
3
10