Subtraction Strategies Maths Games For Year 4 (age 8-9)
There are some really helpful strategies here to assist with subtracting mentally, including finding a difference either side of a multiple of 100 and subtracting 99 from a number. There is also help at hand to subtract single digits from any number, as well as a fun subtracting whole tens game.
Find a Difference Either Side of a Multiple of 100
These are best done by counting on from the lower number. The answers are always single digits.
Subtract by Counting Back in Tens
Mentally subtracting multiples of ten from 3-digit numbers. An easy way to do these is to count back in tens.
Subtract the Nearest Multiple of 10 and Adjust
Remember it is often easier to subtract the nearest multiple of ten and adjust: e.g. take 39 by taking 40 and adding 1.
Subtract Multiples of 100
Wow! Subtracting large numbers, but luckily they are all multiples of 100, which makes it much easier.
Subtract 99: Timed Challenge
These are much easier than they look: I just scored 18 correct answers in 40 seconds!
Subtracting Whole Tens Game
Jump over the snakes to avoid losing one of your three lives. Win points by hitting burgers and answering questions correctly! All the questions are subtracting whole tens.
Subtract a Single Digit from a Multiple of 1000
A good way to do these is to count back in ones from the multiple of 1000.
Subtract a Single Digit from Any 3-digit Number
Subtracting a single digit from a 3-digit number: lots of different strategies can be used for these.
Find a Small Difference Either Side of a Multiple of 1000
These are hard to do on paper, but really easy if you just count on from the smaller number.
Subtract Any Pair of 2-digit Numbers
Using the term 'How much less than?' with 2-digit numbers. Quite tricky!
Find the Missing Number: Timed Challenge
A timed activity, subtracting a single digit from a 3-digit number.
Subtract 2-digit Numbers Game
Use the arrow keys to move the dragon left or right over the fire. Answer questions correctly to gain points. Ten correct needed to complete the task.
