All flashcard decksNAPLAN Year 9 Practice syllabus →
30 cardsNAPLAN Year 9 Practice

NAPLAN Year 9 Numeracy and Language Quick Rules

Thirty flashcards with the maths formulas and spelling and grammar rules most often needed in NAPLAN Year 9. Original study material.

Start studyingPlay Match
PDF study sheet

Free account needed to save, copy or download. We bring you back here.

1 / 30
0 known
TermClick or press Space to flip
Area of a rectangle
GetMyMockTestQuestion side

Full list

Terms in this deck (30)

NAPLAN Year 9 Practice mock tests →
1
Area of a rectangle
length × width
2
Area of a triangle
½ × base × height
3
Area of a circle
π × radius²
4
Circumference of a circle
2 × π × radius
5
Pythagoras' theorem
a² + b² = c² in a right-angled triangle
6
Angle sum of a triangle
180°
7
Sum of interior angles of a polygon with n sides
(n − 2) × 180°
8
Percentage of an amount
percent ÷ 100 × amount
9
Distance, speed and time
distance = speed × time
10
Mean of a data set
sum of values ÷ number of values
11
Median
the middle value when the data are in order
12
Mode
the most frequent value
13
Probability of an event
favourable outcomes ÷ total outcomes
14
Volume of a cuboid
length × width × height
15
Volume of a prism
area of base × height
16
Simple interest
principal × rate × time ÷ 100
17
Index law for multiplying
aᵐ × aⁿ = aᵐ⁺ⁿ
18
Index law for dividing
aᵐ ÷ aⁿ = aᵐ⁻ⁿ
19
Solving ax + b = c
x = (c − b) ÷ a
20
Its or it's
its shows possession; it's means it is
21
Their, there or they're
their = belonging to them; there = place; they're = they are
22
Your or you're
your = belonging to you; you're = you are
23
Fewer or less
fewer with countable nouns, less with uncountable nouns
24
Affect or effect
affect is usually a verb; effect is usually a noun
25
Semicolon use
joins two closely related independent clauses
26
Colon use
introduces a list or explanation after a complete clause
27
Apostrophe of possession (plural noun ending in s)
put it after the s: the students' books
28
Subject-verb agreement
a singular subject takes a singular verb: the group was
29
Past perfect tense
had + past participle: the film had started
30
Passive voice
the subject receives the action: the window was broken

NAPLAN Year 9 Practice in Australia

In Australia, NAPLAN Year 9 Practice is part of: School exams.

Students on the same pathway also practise:

More NAPLAN Year 9 Practice practice

NAPLAN Year 9 Practice mock tests

All NAPLAN Year 9 Practice practice →