Subtraction Strategies Maths Games For Year 3 (age 7-8)
Use 'What Is The Difference Between..?' with a Number Line
Getting familiar with the term, 'What is the difference between..?' as a way of asking subtraction questions.
Use 'How Much More is...' with a Number Grid
These can be done by subtracting or by adding on.
Use The Minus Sign with a Number Grid
More subtraction practice, using the minus sign. The number grid is useful to help with trickier questions.
Subtract Whole Tens with a Number Grid
Subtracting whole tens from 3-digit numbers. Help comes with the number grid up to 200.
Subtract a Multiple of 10 from a Multiple of 100
Pick up the correct truck to answer these multiple of ten subtraction questions.
Subtract 9 From Any Three Digit Number
Subtract 9 by taking 10 and adding 1. Watch out for the cat!
Subtract 11 From Any Three Digit Number
Taking eleven away is usually best done in two parts, take 10 and then take 1 (or the other way round).
Subtract 19 From Any Three Digit Number
Quite tricky, but taking 20 away and then adding 1 makes it easier.
Subtract a Single Digit from a Three Digit Number
Answer as many questions as possible in the time given.Anything over 10 would be quite good.
Subtract a Single Digit from a Multiple of 100
You will have to work at the speed of a rocket to get a good score on these subtraction questions.
Check Subtraction with Addition
A great way to check that a subtraction is correct is to quickly do an addition sum!
Written Methods of Subtraction by Counting Up
Don't forget to look at the 'Help' link which shows a step by step approach to this method.
Check Subtraction with Addition
Given one correct subtraction fact means that you know an addition fact.
Subtraction by Decomposition
This method shows how partitioning numbers makes it easier to subtract.
