MATHS SUMMARIES FOR JSS
REFERENCE SUMMARIES FOR TEACHERS AND STUDENTS)
(1) THE BINARY SYSTEM
a. A number in base 2 is called a BINARY NUMBER
b. A binary number is a sum of powers of 2
c. In base 2 we have only two numbers 0 & 1 to work with
d. To express a binary number as a decimal number write the given binary number as a sum of multiples of 1, 2, 4,8,16 etc.
(2) WORD PROBLEMS AND FRACTIONS
a. You should be able to express word problems in numerical terms
b. You should be able to simplify expressions having brackets and fractions.
a. Rational numbers consist of all counting numbers, integers, and fractions (positive and negative).
b. A class of non-rational numbers includes square roots, of natural numbers which are not perfect squares.
c. An important example of a…
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