Search Results For “thinking of a number”

An introduction to square numbers and the number patterns associated with them.

What happens when a number is multiplied or divided by 10, 100 or 1 000?

Estimating on a 0 to 10000 number line and making approximate answers to calculations.

When adding using decimals it is very important that the decimal points should line up under each other. If the sum also involves whole numbers it is a good idea to put a decimal point after the whole number followed by a zero.

More adding and subtracting of decimals using adjustment to the nearest whole number to make them easier.

Use the standard written method to subtract numbers in the thousands. Check by adding the answer to the lower number in the sum.

Multiplying whole numbers and tenths by a single digit. When multiplying numbers like these it is a good idea to start with the whole number or units.

The prime factors of a number are the factors which are also prime numbers. They can be found by using a factor tree.

Small items can be measured by putting several together and measuring all of them, and then dividing by the number there are. Giving measurements of length in millimetres and metres.

A pictogram showing the number of books borrowed from the library. Each symbol represents two books.

More ideas for graphs and pictograms, including number of brothers and sisters and colour of toothbrushes!

Something different here: the mathematical sign and a number are both missing.