# Second class maths

Here is a list of all of the maths skills students learn in second class! These skills are organised into categories, and you can move your mouse over any skill name to preview the skill. To start practising, just click on any link. IXL will track your score, and the questions will automatically increase in difficulty as you improve!

## Counting and number patterns

- A.1 Skip-counting
- A.2 Skip-counting sequences
- A.3 Counting patterns - up to 100
- A.4 Number lines - up to 100
- A.5 Hundreds chart
- A.6 Even or odd
- A.7 Identify numbers as even or odd
- A.8 Select even or odd numbers
- A.9 Even or odd numbers on number lines
- A.10 Which even or odd number comes before or after?
- A.11 Skip-counting stories
- A.12 Skip-counting puzzles
- A.13 Number lines - up to 1,000
- A.14 Counting patterns - up to 1,000

## Comparing and ordering

## Names of numbers

## Patterns

## Addition - one digit

- E.1 Review - add one-digit numbers - sums to 10
- E.2 Review - ways to make a number - sums to 10
- E.3 Review - writing addition sentences - sums to 10
- E.4 Add doubles
- E.5 Add one-digit numbers
- E.6 Addition with pictures - sums to 20
- E.7 Write addition sentences to describe pictures - sums to 20
- E.8 Addition input/output tables - sums to 20
- E.9 Add zero
- E.10 Addition word problems - one digit
- E.11 Complete the addition sentence - one digit
- E.12 Write the addition sentence - one digit
- E.13 Balance addition equations - one digit
- E.14 Add three or more one-digit numbers
- E.15 Add three or more one-digit numbers - word problems
- E.16 Identify repeated addition in arrays: sums to 10
- E.17 Write addition sentences for arrays: sums to 10
- E.18 Identify repeated addition in arrays: sums to 25
- E.19 Write addition sentences for arrays: sums to 25

## Subtraction - one digit

- F.1 Review - subtract one-digit numbers - up to 10
- F.2 Review - ways to subtract - up to 10
- F.3 Review - writing subtraction sentences - up to 10
- F.4 Subtract doubles
- F.5 Subtract a one-digit number from a two-digit number up to 18
- F.6 Subtraction with pictures
- F.7 Write subtraction sentences to describe pictures - up to 18
- F.8 Subtraction input/output tables - up to 18
- F.9 Subtract zero/all
- F.10 Subtraction word problems - up to 18
- F.11 Complete the subtraction sentence - up to 18
- F.12 Write the subtraction sentence - up to 18
- F.13 Balance subtraction equations - up to 18

## Addition - two digits

- G.1 Add multiples of 10
- G.2 Add a two-digit and a one-digit number - without regrouping
- G.3 Add a two-digit and a one-digit number - with regrouping
- G.4 Add two two-digit numbers - without regrouping
- G.5 Add two two-digit numbers - with regrouping
- G.6 Write addition sentences to describe pictures
- G.7 Addition input/output tables - up to two digits
- G.8 Ways to make a number using addition
- G.9 Addition word problems - up to two digits
- G.10 Complete the addition sentence - up to two digits
- G.11 Write the addition sentence - up to two digits
- G.12 Balance addition equations - up to two digits
- G.13 Add three or more numbers up to two digits each
- G.14 Add three or more numbers up to two digits - word problems

## Subtraction - two digits

- H.1 Subtract multiples of 10
- H.2 Subtract a one-digit number from a two-digit number - without regrouping
- H.3 Subtract a one-digit number from a two-digit number - with regrouping
- H.4 Subtract two two-digit numbers - without regrouping
- H.5 Subtract two two-digit numbers - with regrouping
- H.6 Write subtraction sentences to describe pictures - up to two digits
- H.7 Subtraction input/output tables - up to two digits
- H.8 Ways to make a number using subtraction
- H.9 Subtraction word problems - up to two digits
- H.10 Complete the subtraction sentence - up to two digits
- H.11 Write the subtraction sentence - up to two digits
- H.12 Balance subtraction equations - up to two digits

## Addition - three digits

- I.1 Add multiples of 100
- I.2 Addition with three-digit numbers
- I.3 Addition input/output tables - up to three digits
- I.4 Addition word problems - up to three digits
- I.5 Complete the addition sentence - up to three digits
- I.6 Write the addition sentence - up to three digits
- I.7 Balance addition equations - up to three digits

## Subtraction - three digits

- J.1 Subtract multiples of 100
- J.2 Subtract three-digit numbers
- J.3 Subtraction input/output tables - up to three digits
- J.4 Subtraction word problems - up to three digits
- J.5 Complete the subtraction sentence - up to three digits
- J.6 Write the subtraction sentence - up to three digits
- J.7 Balance subtraction equations - up to three digits

## Properties

## Place values

- L.1 Place value models - tens and ones
- L.2 Place value models - up to hundreds
- L.3 Place value models - up to thousands
- L.4 Place value - tens and ones
- L.5 Place value - up to hundreds
- L.6 Place value - up to thousands
- L.7 Regroup tens and ones
- L.8 Regroup tens and ones - ways to make a number
- L.9 Convert to/from a number - tens and ones
- L.10 Convert to/from a number - up to hundreds
- L.11 Convert to/from a number - up to thousands
- L.12 Convert between place values - up to thousands
- L.13 Convert from expanded form - up to hundreds
- L.14 Convert from expanded form - up to thousands
- L.15 Identify a digit up to the hundreds place

## Estimation and rounding

## Money

- N.1 Coin values
- N.2 Count money - up to €1
- N.3 Count money - up to €5
- N.4 Equivalent amounts of money - up to €1
- N.5 Equivalent amounts of money - up to €5
- N.6 Exchanging coins
- N.7 Comparing groups of coins
- N.8 Add and subtract money - up to €1
- N.9 Add and subtract money - word problems - up to €1
- N.10 Add and subtract money - word problems - up to €5
- N.11 Which picture shows more - up to €1
- N.12 Which picture shows more - up to €5
- N.13 Least number of coins
- N.14 Purchases - do you have enough money - up to €1
- N.15 Purchases - do you have enough money - up to €5
- N.16 How much more to make one euro?
- N.17 Making change

## Time

- O.1 Match analogue clocks and times
- O.2 Match digital clocks and times
- O.3 Match analogue and digital clocks
- O.4 Read clocks and write times
- O.5 Time words: o'clock, half, quarter
- O.6 A.M. or P.M.
- O.7 Compare clocks
- O.8 Elapsed time I
- O.9 Elapsed time II
- O.10 Time patterns
- O.11 Relate time units
- O.12 Seasons
- O.13 Days of the week
- O.14 Months of the year
- O.15 Number of days in each month
- O.16 Read a calendar

## Data and graphs

- P.1 Interpret bar graphs
- P.2 Which bar graph is correct?
- P.3 Interpret line plots
- P.4 Create line plots
- P.5 Interpret pictographs
- P.6 Create pictographs
- P.7 Interpret line graphs
- P.8 Which line graph is correct?
- P.9 Sort shapes into a Venn diagram
- P.10 Count shapes in a Venn diagram
- P.11 Venn diagrams with three circles

## Units of measurement

- Q.1 Long and short
- Q.2 Tall and short
- Q.3 Light and heavy
- Q.4 Holds more or less
- Q.5 Compare size, mass and capacity
- Q.6 Read a thermometer
- Q.7 Measure using a centimetre ruler
- Q.8 Which metric unit of length is appropriate?
- Q.9 Metric units of length: word problems
- Q.10 Which metric unit of mass is appropriate?
- Q.11 Which metric unit of volume is appropriate?
- Q.12 Compare and convert metric units of volume
- Q.13 Compare and convert metric units of mass
- Q.14 Choose the appropriate measuring tool

## Two-dimensional shapes

## Three-dimensional shapes

## Geometric measurement

## Logical reasoning

## Fractions

- V.1 Halves, thirds and quarters
- V.2 Identify the fraction
- V.3 Which shape illustrates the fraction?
- V.4 Fractions of a group
- V.5 Fractions of a whole: modelling word problems
- V.6 Fractions of a whole: word problems
- V.7 Fractions of a group: word problems
- V.8 Compare fractions using models
- V.9 Order fractions with like denominators
- V.10 Order fractions with like numerators

## Probability and statistics

## Mixed operations

- X.1 Add and subtract numbers up to 20
- X.2 Addition and subtraction - ways to make a number - up to 20
- X.3 Addition and subtraction word problems - up to 20
- X.4 Addition and subtraction - balance equations - up to 20
- X.5 Input/output tables - write the rule - up to 20
- X.6 Add and subtract numbers up to 100
- X.7 Addition and subtraction - ways to make a number - up to 100
- X.8 Addition and subtraction word problems - up to 100
- X.9 Addition and subtraction - balance equations - up to 100
- X.10 Input/output tables - write the rule - up to 100
- X.11 Which sign (+ or -) makes the number sentence true?
- X.12 Write addition and subtraction sentences
- X.13 Inequalities with addition and subtraction - up to 100