Use knowledge of place value and addition and subtraction of two-digit numbers to derive sums and differences and doubles and halves of decimals

View all Year 5 Block B objectives.

 
Division - Crystal Crash Division - Crystal Crash

A fun way to get children to practise their division facts. All the levels are based on objectives from the new maths curriculum. Choose one level, or select all the levels for a year group. 

This game, together with all the other crystal crash games, is available as a single iPad or Android app.

1. Half of numbers to 20 (Y1)

5. Derive and use halves of simple two-digit even numbers (Y2)

9. Halve numbers up to 200 (Y3)

13. Division facts for the 11 times table (Y4)

2. Division facts for the 2 times table (Y2)

6. Division facts for the 3 times table (Y3)

10. Division facts for the 6 times table (Y4)

14. Division facts for the 12 times table (Y4)

3. Division facts for the 5 times table (Y2)

7. Division facts for the 4 times table (Y3)

11. Division facts for the 7 times table (Y4)

15. Halve decimals (1dp) (Y4)

4. Division facts for the 10 times table (Y2)

8. Division facts for the 8 times table (Y3)

12. Division facts for the 9 times table (Y4)

16. Halve decimals (2dp) (Y5)

KS2 Maths Invaders KS2 Maths Invaders

Shoot the spaceship with the correct answer and dodge the incoming fire. A fun game to practise a wide range of key mathematical skills.  

There are over a hundred carefully differentiated levels linked to objectives from the new maths curriculum. The game can be used to teach: Multiplication, Addition, Reading Numbers, Subtraction, Fractions of Numbers, Roman Numerals, Rounding Numbers, Division, Converting Fractions to Decimals, Converting Fractions to Percentages, Telling the Time in Words, Recognising Multiples, Factors, Prime, Square and Cube Numbers, and Simplifying Fractions. A full list of levels is below. This game is also available as an iOS and Android app.

Addition - Crystal Crash Addition - Crystal Crash

A fun game to practise mental addition skills. The game was designed to cover all the mental addition objectives in the new math curriculum. You can choose one objective, or choose all the objectives for a year group. 

This game, together with all the other crystal crash games, is available as a single iPad or Android app.

1) Add numbers up to 10 (Y1)

6) Add three one-digit numbers (Y2)

11) Add a three-digit number and ones (Y3)

16) Add combinations of two and three digit numbers (y4)

2) Add numbers up to 20 (Y1)

7) Addition pairs that make 100 (multiples of 10) (Y3)

12) Add a three-digit number and tens (Y3)

17) Add combinations of decimals (1dp) (Y4)

3) Add a two-digit number and ones (Y2)

8) Addition pairs that make 100 (multiples of 5) (Y3)

13) Add a three-digit number and hundreds (Y3)

18) Add pairs of decimals (2dp) that make 1 (Y5 & Y6)

4) Add a two-digit number and tens (Y2)

9) Addition pairs that make 100 (Y3 & Y4)

14) Add pairs of decimals (1dp) that make 1 (Y4 & Y5)

19) Add combinations of three-digit numbers (Y5 & Y6)

5) Add two two-digit numbers (Y2)

10) Add pairs that make 1000 (multiples of 100) (Y3 & Y4)

15) Add pairs of decimals (1dp) that make 10 (Y4 & Y5)

20) Add combinations of decimals (2dp) (Y5 & Y6)

Adding Decimals - Digit Drag Adding Decimals - Digit Drag

Drag the digits to add decimal numbers and make a given total. 

Decimal Place Value Digit Drag Decimal Place Value Digit Drag

Drag the digits to make the decimal closest in value to a given number.

For more resources involving fractions and decimals click here.

Subtraction - Crystal Crash Subtraction - Crystal Crash

The game was designed to cover all the mental subtraction objectives in the new math curriculum. You can choose one objective, or choose all the objectives for a year group. 

This game, together with all the other crystal crash games, is available as a single iPad or Android app.

1) Subtract numbers from up to 10 (Y1)

6) Subtract from 100 (multiples of 10) (Y3)

11) Subtract tens from a three-digit number (Y3)

16) Subtract combinations of decimals (1dp) (Y4)

2) Subtract numbers from up to 20 (Y1)

7)Subtract from 100 (multiples of 5) (Y3)

12) Subtract hundreds from a three-digit number (Y3)

17) Subtract a decimal (2dp) from 1  (Y5 & Y6)

3) Subtract ones from a two-digit number (Y2)

8) Subtract from 100 (Y3 & Y4)

13) Subtract a decimal (1dp) from 1 (Y4 & Y5)

18) Subtract combinations of three-digit numbers (Y5 & Y6)

4) Subtract tens from a two-digit number (Y2)

9) Subtract from 1000 (multiples of 100) (Y3 & Y4)

14) Subtract a decimal (1dp) from 10 (Y4 & Y5)

19) Subtract combinations of decimals (2dp) (Y5 & Y6)

5) Subtract a two-digit number from a two-digit number (Y2)

10) Subtract ones from a three-digit number(Y3)

15) Subtract two-digit numbers from three-digit numbers (y4)

 
Balancing Decimal Calculations Balancing Decimal Calculations

Find the missing number to balance the decimal calculations. Levels include finding the sums and differences of decimal, U.t xU and multiplying and dividing decimals by 10, 100 or 1000. Choose a range of different objectives and they will be 'balanced' against each other.

For more resources involving fractions and decimals click here.

Missing Symbols Missing Symbols

Drag the symbols to the correct position to make the number sentence correct. Lots of levels to play. See if you can improve your score over time.

For more multiplication and division resources click here.

For more addition and subtraction resources click here.

This game is now part of the 'Calculations' collection, which includes the following 17 games and resources: Column Addition, Expanded Addition, Expanded Addition - Place Value Counters, Number Bonds(2), Addition - Digit Drag, Missing Symbols, Column Subtraction, Column Subtraction using Place Value Counters, Counting on to find difference on a beadstring, Multiplication Grid Method, Multiplication Written Method, Ratio and Scaling Numbers, Representing Multiplication, Division by Chunking Up, Division by Chunking Down, Formal Written Division - Round Up or Down?, Short Division Writen Formal Method.

The Calculations app is available on Google Play and the App Store.

Balance scales -  add, move or remove a weight Balance scales - add, move or remove a weight

Balance the scales by adding, moving or removing a weight. A great mental starter to develop addition and subtraction skills.

For more addition and subtraction resources click here.

Balancing Scales g and kg Balancing Scales g and kg

Add weights to either pan until they are balanced. Can be used to teach addition, subtraction, partitioning, and mass, as well as developing an understanding of the equals sign.


Choose from grams, whole kilograms or kilograms with either 1 or 2 decimal places.

For more addition and subtraction resources click here.

For more partitioning resources click here.

Number Bonds Number Bonds

October 2012: New game added in which number bonds are represented visually using base-ten blocks and a number line.

Find pairs of numbers with a given total. Play against the clock. 

For more addition and subtraction resources click here.

Placing Calculations on a Number Line Placing Calculations on a Number Line

Place the answer to calculations on a number line. An enormous array of choice. Addition, subtraction, multiplication and division. Ranging from adding numbers to 10 to multiplying 4 digit numbers. Great for combining teaching calculations and approximations with developing an understanding of place value.

For more resources involving partitioning and place value click here.

For more addition and subtraction resources click here.

For more multiplication and division resources click here.

Difference using an unmarked number line Difference using an unmarked number line

Find the difference between two numbers by counting on from the smaller number to the larger number. Children must add the fewest numbers possible, so are encouraged to develop more efficient mental methods. The addition is also shown as jumps on a number line.

Levels include counting up to 10, 20, 50 or 100, finding the difference between 2-digit numbers, 3-digit numbers and decimals.

For more addition and subtraction resources click here.