How_To_Be_Good_At_Math

316 INDEX

highest common factor 46

Hindu-Arabic numerals 10–11

honeycomb cells 218

horizon 205

horizontal lines 205, 206, 210

of a grid 248

hours 192, 193

hundreds

place value 12, 13

Roman numerals 10

I

icosagon 219

icosahedron 225

image 260, 261

imperial units 188–91

converting to metric units 189

improper fractions 42–3

inches 189, 190

indices 152

intersection 275

lines 211, 236, 237

invention of numbers 10

inverse squares 38

irregular decagon 218

irregular dodecagon 219

irregular heptagon 218

irregular hexagon 218

irregular icosagon 219

irregular nonagon 219

irregular octagon 219

irregular pentagon 219

irregular quadrilateral 219

irregular triangle 218

isosceles trapezium 217

isosceles triangles 215, 241

finding the perimeter of 167

lines of symmetry in 257

K

Kelvin scale 186

kilogram (kg) units 182

kilometre (km) units 160, 161, 163

graph to convert to miles 289

kite shape 217

L

lattice method of multiplication

126–27

laws of arithmetic 154–55

for equations 302

length 160–61

calculations with 162–63

imperial units of 189, 190–91

lines 204

perimeter 164, 165

three-dimensional (3D)

shapes 222

two-dimensional (2D) shapes

212

less than symbol 21

letters in formulas 308

line graphs 288–89, 290–91

line of reflection 260, 261

line of symmetry 256, 257

lines 204

curved 220

diagonal (oblique) 206–07,

210

horizontal 205, 210, 211

intersecting 236, 237

parallel 208–09

perpendicular 210–11

polygons 212

vertical 205, 210, 211

litre (l) units 178, 179

long division 146–47

expanded 144–45

long multiplication 120–23

expanded 118–19

of decimals 124–25

lowest common multiples 31

M

maps

compass directions 254

coordinates 248, 249

position and direction 252,

253

mass 182

calculating 184–85

imperial units of 188, 190–91

weight and 183

matter (material) 182, 183

mean 276, 277, 278, 280, 281

measuring angles 238, 239

measuring area 168

measuring length 160–67

calculations with 162

perimeters 164–67

measuring mass 182

median 276, 278, 280, 281

members of sets 274

metre (m) units 160, 161, 163

metric units

converting to imperial units

189

equivalent measures 191

of length 160

of mass 182

miles 189, 190

miles to kilometres conversion

graph 289

milligram (mg) units 182

millilitre (ml) units 178, 179

millimetre (mm) units 160, 161

minus symbol 88

minutes 192, 193

mirror line 256, 260

mixed numbers 42–3

mode (modal value) 276, 279,

280, 281

money 198, 199

calculating with 200–01

months 194, 195

multiples 30–1

counting in 102–03

dividing with 130

rewriting fractions with 51

multiplication 98–127

associative law 154, 155

by 10 10, 108

by 10, 100, and 1000 108

commutative law 154

with decimals 124–25, 127

distributive law 155, 303

division and 129

equivalent fractions 45

expanded long 118–19

expanded short 114–15

fractions 54–5

grid method of 112–13

lattice method of 126–27

long multiplication 120–23,

124–25

order of operations 152, 153

partitioning for 110–11

patterns in 107

scaling 100

short multiplication 116–17

strategies for 107

tables 104–05, 106

multiplication grid 106, 112–13

for division 131

equivalent fractions 45

N

navigation

compass directions 255

coordinates 253

negative coordinates 250, 251

negative numbers 18–9

temperature 186

nets 228–29

Newtons (N) 183

nonagon 219

non-polygons 212

non-unit fractions 40–1

comparison of 50

multiplication of 55

notes (money) 199

nth term 306

number bonds 82

number grid 81

number lines 18

for addition 80, 88

for dividing 130

for subtraction 88, 89, 92

for multiples 30, 31, 102–03

for partitioning 110

number lines (continued)

positive and negative

numbers 18, 19

for rounding up and

rounding down 26

temperature 186, 187

number symbols 10–11

numbers 11–23

comparing 20–21

cube roots of 38–9

cubes of 39

decimal 56–63

estimating 24–5

factors of 28–9, 34–5

fractions of 40–55, 74–5

mixed 42–3

multiples of 30–1

negative 18–9

ordering 22–3

patterns of 14–5

percentages of 62–7

place value 12–3

positive 18–9

prime 32–3, 34, 35

prime factors of 34–5

proportion 70–1

ratio 68–9

rounding 25, 26–7

scaling 72–3

sequences of 14–7

shapes of 16–7

simplifying 25

square 36–7, 38

square roots of 38–9

symbols for 10–11

numerals 10

numerator 41, 149

comparing fractions 48

equivalent fractions 44, 45

finding fractions 47

simplifying fractions 46

unit fractions 49

O

oblique lines 206

obtuse angles 233

in triangles 241

octagon 219

angles inside an 246

octahedron 225

one-dimensional lines 204

ones

place value 12, 13

Roman numerals for 10

open array 111, 112

opposite angles 236–37

order of operations 152–53

order of rotational symmetry

259

ordering decimals 60

314_318_Maths_Index.indd 316 29/02/2016 18:57