4.1 Fractions
Simplifying
4.1.1
Adding and
subtracting
4.1.4
Multiplying
4.1.2
Order of
operations
4.1.5
Divide
4.1.3
Context
4.1.6
+
Crosswise
simplification
4.1.7
4.2 Decimal numbers
Introduction
4.2.1
Calculating
4.2.2
Rounding
4.2.3
Numbers
describe
4.2.4
4.3 Ratios
Table
4.3.1
Convert
4.3.2
Context
4.3.3
4.4 Prime numbers
Prime numbers
4.4.1
Prime factors
4.4.2
+
LCM&GCD with
prime factors
4.4.3
4.5 Number systems
Roman
numerals
4.5.3
Binary
4.5.1
Octal
4.5.2
Sexagesimal
4.5.4
+
Hexadecimal
4.5.6
Calendar
4.5.5
4.6
Number
sets
Whole numbers
4.6.1
Rationale
numbers
4.6.2
Real numbers
4.6.3
+
Complex
numbers
4.6.4
4.7 Repeating fractions
+
Purely
repeating
4.7.1
+
Mixed
recurring
4.7.2