We have used this great worksheet, from the excellent web teaching ideas, that includes ten short problems to practise money and KS1 level arithmetics.

# Tag: mental arithmetics

## Mental arithmetics game. Friends of number 10 and 20.

Table games, especially those that require the use of dice, quickly develop in the child useful mental calculation skills. It is interesting, as the children grow, to provoke significant mental calculation mementos, and (table) games are the best for this.

We have previously shared a simpler game to practise doubles and doubles +1 with a dice.

This game today is more complex and can be difficult for the younger kids. Still you only need paper, pencil and dice. Use our templates for ready to use tables with friends of 10 and friends of 20.

**Friends of 10**

Roll 2 dice or one dice twice. Add the results. On the table with numbers look for a number that, when adding or taking away your result, you get 10. Colour or mark that number in the table.For example, you roll the dice twice and get a 3 and 1, that makes 4 in total. You need a 6 to make a 10.You then colour a cell with a number 6 on it. Or you roll the dice and get a 6 and a 5. That´s a total of 11. You need a 1 to take away from 11 to make a 10. You can colour a cell with number 1 in it.

You can add other rules to the game: using a timer to see how many numbers are found in 10 minutes, or play with other players taking turns. If a number box is already colored the player gets another turn.

**Friends of 20**

Same routine but with the table that has numbers up to 17. You need to roll the dice three times or use three dice.

## Play with fractions: read, compare, find equivalent fractions

We have created this colorful cards to practise fractions. You can download all the worksheets here in one pdf ready to print. They include 28 cards plus templates.

How to work with the material

– Print and laminate the letters.

– Cut out the cards.

– Decide what you want to work on.

These cards allow you to:

– Read and write fractions

– Compare fractions.

– Sort fractions.

– Add and subtract fractions.

– Complementary Fractions.

Print multiple copies to work addition of fractions with the same denominator.

## Math routines

More math worksheets to reinforce numbering and initiate addition and subtraction. First one is sea themed and the second brings the teamwork of the ninja turtles! Click on the pictures to download the worksheets.

Download here a version of a template to print and adapt the level to the student progress.

Check a previous post with math routines and a pirate theme.

## Addition and subtraction booklet – without carry up to number 30.

Another booklet to work addition and subtraction without carrying, this time up to number 30. The booklet has ten pages and there is a number line on every page.

## Addition and subtraction booklet – without carry up to number 20.

This is a ten page booklet to initiate addition and subtraction without carry. Unlike others found on the net, there are fewer operations and that makes the sheet look clear and attractive to students.

We have included in every page a number line to facilitate mechanics.

## Math routines with the pirates

These routines work very well to work and reinforce numbering and initiation to addition and subtraction. And the pirates give all their help!

The last sheet is easier, for students starting with the routines.

Included also is a version of a template so you are able to make more sheets and adapt the level to the student progress.