Glossary: Terms Starting with C
65 definitions in Mathematics with links to the lessons that teach each word.
Showing Mathematics only. Show all subjects
All terms starting with C
calendar
MathsFrom Grade 1
A chart showing days, weeks and months.
Learn it in: Months of the year (Grade 1), Calendars (Grade 2)
capacity
MathsFrom Grade 2
How much a container holds.
Learn it in: Capacity (Grade 2), Measuring capacity (Grade 3), Standard units (Grade 4)
carry
MathsFrom Grade 2
The new ten or hundred moved to the next column.
Learn it in: Regrouping in addition (Grade 2), Addition with regrouping (Grade 3)
category
MathsFrom Grade 3
A group in the data.
Learn it in: Collecting data (Grade 3), Frequency tables (Grade 3), Organising data (Grade 6)
centi
MathsFrom Grade 5
One hundredth.
Learn it in: Metric conversions (Grade 5), Metric conversions (Grade 6)
centimetre (cm)
MathsFrom Grade 1
A standard unit for measuring short lengths.
Learn it in: Introduction to centimetres (Grade 1), Measuring length (Grade 2), Centimetres and metres (Grade 2)
change
MathsFrom Grade 1
Money you get back.
Learn it in: Simple money problems (Grade 1), Making change in simple situations (Grade 2), Money calculations (Grade 3)
check
MathsFrom Grade 1
Make sure an answer is right.
Learn it in: Addition using objects (Grade 1), Taking away objects (Grade 1), Relationship between addition and subtraction (Grade 1)
circle
MathsFrom Grade 1
A round shape with no corners.
Learn it in: Circles (Grade 1), Shape patterns (Grade 1), Division using pictures (Grade 2)
classify
MathsFrom Grade 1
Sort into groups by a rule.
Learn it in: Classifying objects (Grade 1), Shape classification (Grade 3), Geometric reasoning (Grade 5)
clue word
MathsFrom Grade 1
A word that helps, like altogether or in all.
Learn it in: Addition word problems (Grade 1), Subtraction word problems (Grade 1)
coefficient
MathsFrom Grade 6
Number multiplying a variable.
Learn it in: Algebraic expressions (Grade 6)
coin
MathsFrom Grade 1
A small round piece of metal money.
Learn it in: Recognising local coins and notes (Grade 1), Counting money (Grade 2)
column
MathsFrom Grade 1
Things one above another, top to bottom.
Learn it in: Numbers to 100 (Grade 1), Addition within 1,000 (Grade 2), Regrouping in addition (Grade 2)
comma
MathsFrom Grade 4
Marks the groups of three digits.
Learn it in: Numbers beyond 100,000 (Grade 4)
common denominator
MathsFrom Grade 4
A shared denominator.
Learn it in: Comparing fractions (Grade 4), Equivalent fractions (Grade 5), Comparing fractions (Grade 5)
common factor
MathsFrom Grade 4
A factor shared by both numbers.
Learn it in: Simplifying fractions (Grade 4), Equivalent fractions (Grade 5), Greatest common factor (Grade 6)
common multiple
MathsFrom Grade 4
A multiple shared by two numbers.
Learn it in: Understanding multiples (Grade 4), Least common multiple (Grade 6)
commutative
MathsFrom Grade 3
The order of the factors does not change the product.
Learn it in: Multiplication properties (Grade 3), Multiplication properties (Grade 4)
compare
MathsFrom Grade 1
Look at two numbers to see which is bigger or smaller.
Learn it in: Comparing two-digit numbers (Grade 1), Comparing lengths (Grade 1), Reviewing numbers to 100 (Grade 2)
compatible numbers
MathsFrom Grade 4
Numbers easy to compute.
Learn it in: Estimating products (Grade 4), Estimation (Grade 5)
compensate
MathsFrom Grade 4
Adjust to make a friendly number, then fix.
Learn it in: Mental computation (Grade 4)
composite
MathsFrom Grade 6
More than two factors.
Learn it in: Factors and multiples (Grade 6), Area of composite figures (Grade 6)
composite figure
MathsFrom Grade 4
A shape made of simpler shapes.
Learn it in: Area of composite rectangular figures (Grade 4), Perimeter (Grade 5), Area (Grade 5)
compound unit
MathsFrom Grade 3
A measure using two units, like 3 L 250 ml.
Learn it in: Standard measurement units (Grade 3)
conclusion
MathsFrom Grade 3
What the data tells us.
Learn it in: Drawing conclusions (Grade 3), Drawing conclusions (Grade 5)
continue
MathsFrom Grade 1
Keep going.
Learn it in: Colour patterns (Grade 1), Continuing patterns (Grade 1)
convert
MathsFrom Grade 2
Change from one unit to another.
Learn it in: Centimetres and metres (Grade 2), Solving measurement problems (Grade 2), Standard measurement units (Grade 3)
core
MathsFrom Grade 1
The part of a pattern that repeats.
Learn it in: Recognising patterns (Grade 1), Colour patterns (Grade 1), Continuing patterns (Grade 1)
corner
MathsFrom Grade 1
Where two sides meet.
Learn it in: Circles (Grade 1), Triangles (Grade 1), Squares (Grade 1)
corresponding terms
MathsFrom Grade 5
Terms in the same position.
Learn it in: Number patterns (Grade 5)
cost
MathsFrom Grade 1
How much you pay for something.
Learn it in: Simple money problems (Grade 1), Adding money amounts (Grade 2)
count
MathsFrom Grade 1
To say numbers one by one as you touch each thing.
Learn it in: Understanding numbers (Grade 1), Counting objects from 0–10 (Grade 1), Counting categories (Grade 1)
count back
MathsFrom Grade 1
Say the numbers in order, getting smaller.
Learn it in: Counting forwards and backwards (Grade 1), Subtraction within 20 (Grade 1), Subtraction within 100 (Grade 2)
count on
MathsFrom Grade 1
Say the next numbers in order, getting bigger.
Learn it in: Counting forwards and backwards (Grade 1), Counting-on strategies (Grade 1), Counting hundreds (Grade 2)
count up
MathsFrom Grade 2
Add on to reach the amount paid.
Learn it in: Making change in simple situations (Grade 2)
counterexample
MathsFrom Grade 5
An example that shows a claim is false.
Learn it in: Mathematical reasoning (Grade 5), Geometric reasoning (Grade 5)
cross out
MathsFrom Grade 1
Draw a line through to show taken away.
Learn it in: Taking away objects (Grade 1), Subtraction using pictures (Grade 1)
cube
MathsFrom Grade 1
A solid shape with 6 square faces.
Learn it in: Cubes (Grade 1), Surface area using nets (Grade 6)
cubic unit
MathsFrom Grade 5
Unit cube.
Learn it in: Volume (Grade 5), Volume of rectangular prisms (Grade 6)
curved
MathsFrom Grade 1
Bending like a rainbow, not straight.
Learn it in: Circles (Grade 1), Properties of 2D shapes (Grade 2)
curved surface
MathsFrom Grade 1
A surface that bends.
cylinder
MathsFrom Grade 1
A solid shape with 2 flat circle faces and a curved side.
Learn it in: Cylinders (Grade 1)