# Second class

Here is a list of all of the skills students learn in second class! These skills are organised into categories, and you can move your mouse over any skill name to view a sample question. 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.1Skip-counting
- A.2Skip-counting sequences
- A.3Counting patterns - up to 100
- A.4Number lines - up to 100
- A.5Hundreds chart
- A.6Even and odd: counting objects
- A.7Even or odd I
- A.8Even or odd II
- A.9Even and odd numbers on number lines
- A.10Which even or odd number comes before or after?
- A.11Skip-counting stories
- A.12Skip-counting puzzles
- A.13Number lines - up to 1,000
- A.14Counting patterns - up to 1,000

## Comparing and ordering

## Names of numbers

## Addition - one digit

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

## Subtraction - one digit

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

## Addition - two digits

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

## Subtraction - two digits

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

## Addition - three digits

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

## Subtraction - three digits

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

## Properties

## Place values

- L.1Place value models - tens and ones
- L.2Place value models - up to hundreds
- L.3Place value models - up to thousands
- L.4Value of underlined digit - tens and ones
- L.5Value of underlined digit - up to hundreds
- L.6Value of underlined digit - up to thousands
- L.7Regrouping tens and ones I
- L.8Regrouping tens and ones II
- L.9Convert to/from a number - tens and ones
- L.10Convert to/from a number - up to hundreds
- L.11Convert to/from a number - up to thousands
- L.12Convert between place values - up to thousands
- L.13Convert from expanded form - up to hundreds
- L.14Convert from expanded form - up to thousands
- L.15Identify the digit in the ones, tens, hundreds or thousands place

## Estimation and rounding

## Money

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

## Time

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

## Data and graphs

## Geometry

## Measurement

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

## Logical reasoning

## Fractions

## Probability and statistics

## Mixed operations

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