Number Bases.

Mathematics for JSS1 First Term

 Week 5.

Number Bases.

Performance Objectives.

Students should be able to

1. Count in groups of 2.
2. Convert base 10 to numerals to binary numbers.
3. Add and subtract two or three digits in binary numbers.

Content.

2⁰=1

2¹=1

2²=4

2³=8

2⁴=16

2⁵=32

2⁶=64

Example 1; Convert 54 to base 2.

2. 54

2. 27R0

2  13 R1

2    6R1

2    3R0    ^

2    1 R1   ^

2    0 R 1  ^

 

110110 _two.

Example 2: Convert 25 to base 2.

2   25

2   12 R1

2    6R0

2    3R0     ^

2    1 R1    ^

2    0 R1   …