Search Results For “writing numbers”

Mini investigations into how many different ways totals can be made from three numbers.

Subtracting 2-digit numbers, but no 'decomposition' needed. A good mental arithmetic exercise.

practice at subtracting 11 or 21 from 2-digit numbers 'in your head'.

Let's look at the patterns of numbers created when adding.

A mini investigation for superbrains. How many ways can you make 100, just using the numbers and signs shown?

A fun addition game for two players, practising adding single digit numbers.

Plenty of practice here on adding two 1-digit numbers.

Play this game with a partner to help with numbers that make 10.

Put the numbers in the grid so that each row, column and diagonal add up to the same total.

Put the numbers in the circles so that each line adds up to 18.

Arranging dots in different patterns.

Doubling and halving numbers up to 20.