Glossary: Terms Starting with E

each

MathsFrom Grade 2

Every one of the groups.

Learn it in: Equal groups (Grade 2), Simple multiplication problems (Grade 2), Word problems (Grade 3)

edge

MathsFrom Grade 1

Where two faces meet.

Learn it in: Cubes (Grade 1), Properties of 3D shapes (Grade 2), Spatial reasoning (Grade 6)

eighths

MathsFrom Grade 3

Eight equal parts.

Learn it in: Equal Parts of a Whole (Grade 3)

elapsed time

MathsFrom Grade 3

How much time has passed.

Learn it in: Elapsed time (Grade 3), Time intervals (Grade 4), Time and money applications (Grade 5)

eleven, twelve

MathsFrom Grade 1

The number words for 11 and 12.

Learn it in: Counting from 11–20 (Grade 1)

empty

MathsFrom Grade 1

Holding nothing.

Learn it in: Full and empty (Grade 1)

end time

MathsFrom Grade 3

When it ends.

Learn it in: Elapsed time (Grade 3)

end to end

MathsFrom Grade 1

One after another with no gaps.

Learn it in: Measuring using non-standard units (Grade 1)

endpoint

MathsFrom Grade 4

The end of a segment.

Learn it in: Line segments (Grade 4), Rays (Grade 4)

enough

MathsFrom Grade 2

As much as you need.

Learn it in: Adding money amounts (Grade 2)

equal

MathsFrom Grade 1

The same.

Learn it in: Comparing two-digit numbers (Grade 1), Squares (Grade 1), Equal groups (Grade 2)

equal groups

MathsFrom Grade 2

Groups with the same number in each.

Learn it in: Multiplication using pictures (Grade 2), Multiplication word problems (Grade 4)

equal parts

MathsFrom Grade 2

Parts of the same size.

Learn it in: Equal parts (Grade 2), Thirds (Grade 2), Equal Parts of a Whole (Grade 3)

equal share

MathsFrom Grade 4

Same amount each.

Learn it in: Solving data problems (Grade 4), Dividing decimals in introductory contexts (Grade 5)

equal sign

MathsFrom Grade 6

The symbol =.

Learn it in: Simple equations (Grade 6)

equal to

MathsFrom Grade 2

The same. Sign: =.

Learn it in: Comparing three-digit numbers (Grade 2), Comparing numbers (Grade 3), Comparing large numbers (Grade 4)

equally

MathsFrom Grade 2

The same amount for each.

Learn it in: Sharing equally (Grade 2)

equals (=)

MathsFrom Grade 1

The sign that means the same as.

Learn it in: Meaning of addition (Grade 1)

equation

MathsFrom Grade 5

A statement with =.

Learn it in: Simple equations (Grade 5), Simple equations (Grade 6), Algebraic word problems (Grade 6)

equilateral

MathsFrom Grade 3

All three sides equal.

Learn it in: Triangles (Grade 3), Classifying triangles (Grade 4), Triangles (Grade 5)

equivalent

MathsFrom Grade 2

Equal in size.

Learn it in: Representing simple fractions (Grade 2), Recognising equivalent fractions (Grade 3), Fractions mastery assessment (Grade 3)

equivalent decimals

MathsFrom Grade 4

Same value, e.g. 0.5 and 0.50.

Learn it in: Comparing decimals (Grade 4), Comparing decimals (Grade 5), Decimal comparison (Grade 6)

equivalent fraction

MathsFrom Grade 5

Equal in value.

Full explanation with examples and practice →

Learn it in: Percent as parts per hundred (Grade 5)

equivalent ratios

MathsFrom Grade 6

Same relationship.

Learn it in: Equivalent ratios (Grade 6)

error

MathsFrom Grade 3

A mistake.

Learn it in: Checking calculations (Grade 3), Checking reasonableness (Grade 6)

estimate

MathsFrom Grade 2

A close guess.

Learn it in: Regrouping in addition (Grade 2), Checking answers (Grade 2), Estimating measurements (Grade 2)

evaluate

MathsFrom Grade 5

Find the value.

Learn it in: Numerical expressions (Grade 5), Order of operations (Grade 5), Order of operations (Grade 5)

even

MathsFrom Grade 2

Can be put in pairs with none left over.

Learn it in: Odd and even numbers (Grade 2), Prime numbers (Grade 4)

even set

MathsFrom Grade 6

Two middle values.

Learn it in: Median (Grade 6)

evening

MathsFrom Grade 1

The part before night.

Learn it in: Morning, afternoon and evening (Grade 1)

evidence

MathsFrom Grade 3

Numbers that support a statement.

Learn it in: Drawing conclusions (Grade 3), Drawing conclusions (Grade 5)

exchange

MathsFrom Grade 2

Swap one for ten smaller ones.

Learn it in: Regrouping in subtraction (Grade 2)

exchange rate

MathsFrom Grade 6

Money for money.

Learn it in: Real-world applications (Grade 6)

expanded form

MathsFrom Grade 2

A number written as the sum of its place values.

Learn it in: Expanded form (Grade 2), Expanded form (Grade 3), Expanded form (Grade 5)

expanded notation

MathsFrom Grade 4

A number written as a sum of place values.

Learn it in: Expanded notation (Grade 4)

expense

MathsFrom Grade 6

Money going out.

Learn it in: Applying mathematics to real situations (Grade 6)

explain

MathsFrom Grade 1

Tell how and why.

Learn it in: Creating patterns (Grade 1), Explaining solutions (Grade 6)

exponent

MathsFrom Grade 5

Tells how many 10s.

Learn it in: Powers of ten (Grade 5)

expression

MathsFrom Grade 5

Numbers and operations without =.

Learn it in: Numerical expressions (Grade 5), Numerical expressions (Grade 5), Algebraic expressions (Grade 6)