Decompose numbers to subtract. Engage in a Number Talk focused on subtraction strategies. Can you solve the problem without pencil and paper? Play a fun subtraction game called "Less than 10".

Find out about the column method to subtract more than 4-digit numbers with this Year 5 article from BBC Bitesize.

Math Mights Compare 3-Digit Numbers Part 1 Season 3 Episode 304 | 15m 59s | CC Join Mrs. McCartney to go on a mission to see if we can figure out Professor Barble's comparison word problem. Next ...

Quickly add numbers together that total up to 20 or less Solve one- or two-step word problems by adding or subtracting numbers up to 100 Understand what the different digits mean in a three-digit ...

Learn how to order whole numbers using place value and add, subtract, multiply and divide whole numbers in this revision guide for GCSE maths.

The present paper describes the success, the methods (mental, informal written, standard algorithm) and the strategies of informal written arithmetic to be observed when 300 elementary students worked ...

* Solve one- or two-step word problems by adding or subtracting numbers up to 100 * Understand what the different digits mean in a three-digit number * Add and subtract three-digit numbers ...