# Calculation

**Here's a fun reverse bingo game... **I call it '**reverse**' because the Bingo Boards the children use all feature written subtraction problems, such as ‘50 – 32’ or ‘50 – 19’. **Read more »**

**This is a straightforward number game for 2-4 players.** You need 4 sets of **0-9 digit cards**, a sand timer (or stopwatch) and individual whiteboards (or notepaper). **Read more »**

**There are hundreds of versions of "Think of a Number..." tricks.** This one is perfect for **Friday 13th**. When I used it some years ago, the children wanted to know how it was done, not just to satisfy their curiosity, but so they could share it with their families. The wanted to enjoy using the '*secret*'. So there's motivation in the magic.

Of course, simply telling how a number trick works is fine for some children, but for most it is the **problem solving opportunities** that are important. **Read more »**

**This resource consists of 100 cards grouped into pairs of numbers which sum to 100.**

Print and cut out some or all of the cards - you may, for example, only choose to use specific pairs of numbers:

**10-90, 20-80, 30-70...**or

**9-91, 19-81, 29-71...**or

**1-99, 11-89, 21-79...**for example

**Read more »**

**Many thanks to those mathsticks members who responded to our survey about new maths resources. **

We had a number of requests for more games focusing on the related maths concepts of **multiplication**, **factors**, **products **and **division**. Here's our first new resource for that area. **Read more »**

**Here is another set of cards designed to offer children lots of practice with number bonds to 10. **The downloadable pack includes a set of 24 0-10 digit cards for use in 'Find the Pairs' games.

The file also includes a complete set of 'dotty-number' cards and instructions too.

**Here's a wonderful adaptation of the mathsticks** **Shape Taboo game. **Mary K., one of our mathsticks members created this for her Year 2 class. So, as she says, the calculation words were designed with "*KS1 in mind as they form part of a scheme of work about vocabulary I have just done.* **Read more »**