Search Results For “addition and subtraction”

Much more on using Venn diagrams to sort into 3 groups and Carroll diagrams (named after Lewis Carroll) to sort into four groups.

More number stories to write: this time all about multiplication and division.

Finding the numbers and missing digits to make number sentences correct.

Investigate statements involving odd and even numbers.

Watch out when writing pence as pounds and remember to always have two digits after the decimal point.

This challenge is to find as many ways as possible of making 12 using three number cards and the add, subtract and multiply signs.

When counting up or down in tens or hundreds it can get tricky either side of the thousand boundary. These pages will help children gain confidence counting on and back.

Finding the number half way between two other numbers is not always easy. There are number lines to help with this as well as counting on in ones, tens and hundreds.

The cards at the end of this module are needed to complete these pages. Print onto card and cut them out.

By entering 4 + + = you can make your calculator into an ?add 4?machine. Follow the instructions on these pages. Useful when adding the same number lots of times or looking at patterns and sequences.

More adding and taking away 19, 29 etc. Easy if you know how!

Doubling and halving is still a powerful way to work out answers mentally.