A video entitled "Add and Subtract Expressions" which shows how before adding and subtracting expressions it's important to understand written and unwritten coefficients.

A video entitled "Rearrange Radicals and Rationals" that shows how to use inverse operations to isolate various variables in equations.

A video entitled "Add and Subtract Rationals" which shows how to use a least common denominator to rewrite rational fractions so that they can be added or subtracted.

Add & Subtract Mixed Numbers | Numbers | Y7 Maths | FuseSchool

Math Kids 4th Grade Math - Long Division With Remainder V1-0004

This video provides a step-by-step guide on how to solve long division problems using partial quotients. By breaking down the process into manageable steps and...

Howcast - Learn about standard deductions in this Howcast finance video with expert Gregory McGraime.

Howcast - Learn how to do the 1089 number trick from Magician Roger "Rogue" Quan in this office magic tricks revealed video from Howcast.

Howcast - Finding variance in a data set doesn't require a mathematician. Impress your employer or teacher with your knowledge of statistics without the headache of complicated computations or formulas.

Once you know the trick to adding and subtracting fractions with different denominators, you'll have no problem with these problems.

Subtract, divide, and multiply your way to successfully determining how much that increase or decrease really amounts to.

Pupil outcome: I can solve addition and subtraction stories where the ‘end’ of the story is missing. Key learning points: - The more that is added to an amount at the start of an addition, the greater the amount at the end of the story...

Pupil outcome: I can partition a whole into two parts and express this as a subtraction equation. Key learning points: - When the whole and one part of the whole is known, subtraction can be used to find the missing part. - This can be...

Pupil outcome: I can find the missing part of a subtraction story when the other two parts are known. Key learning points: - When an amount is changed by subtracting, to undo the change, we must add the same amount back on. - The amount...

Pupil outcome: I can use knowledge of known facts and unitising to add and subtract multiples of ten. Key learning points: - Tens numbers can be added to or subtracted from a multiple of ten. - When you add a tens number to a multiple of...

Pupil outcome: I can make addition and subtraction stories and write equations to match. Key learning points: - If starting with and adding/subtracting the same amount, the number at the end of the story will be the same. - When more are...

Pupil outcome: I can recognise addition and subtraction as the inverse of each other. Key learning points: - Addition is the inverse of subtraction. Addition can 'undo' subtraction. - Subtraction is the inverse of addition. Subtraction...

Pupil outcome: I can interpret and represent the inverse relationship between addition and subtraction. Key learning points: - Addition is the inverse of subtraction. Addition can 'undo' subtraction. - Subtraction is the inverse of...

Pupil outcome: I can use bar models to represent and solve subtraction problems. Key learning points: - A bar model can be used to represent subtraction problems and equations. - Overlaying manipulatives on a bar model can be useful for...

Pupil outcome: I can add and subtract zero and know when the difference is zero. Key learning points: - When zero is added to a number the number, the number does not change. - When zero is subtracted from a number, the number does not...

Pupil outcome: I can represent addition and subtraction facts within 10 Key learning points: - Representing a problem can help us to find addition and subtraction facts. - In addition, we can change the order of the addends and the sum...

Pupil outcome: I can use number pairs to ten to solve subtraction problems and equations. Key learning points: - Our knowledge of pairs that sum can help when solving subtraction problems and equations. - Quickly remembering these number...

Pupil outcome: I can use the technique of rationalising the denominator to transform a fraction to an equivalent fraction. Key learning points: - Fractions should be given in their simplest term. - The denominator should be written as...

Pupil outcome: I can add and subtract multiples of ten. Key learning points: - Unitising and known facts help you to add and subtract multiples of ten. - If 3 + 2 is equal to 5 then 3 tens + 2 tens is equal to 5 tens which is equal to 50...

Pupil outcome: I can solve problems by applying different strategies for adding and subtracting multiples of 10 Key learning points: - Representations help to identify the calculation needed to solve a problem. - Different strategies can...