Year 5 Term 6

Key Concepts – Number – Calculations

• Addition is commutative, subtraction isn’t.
• We can use the inverse of each calculation to check our answers,
• Place value and presentation is the key to success when adding and subtracting.
• Children can select the appropriate operation from the vocabulary present in the question and explain their choices.
• Multiplication is the same as repeated addition. Division is repeated subtraction.
• Multiplication is commutative for any number of multiplicands.
• Division is not commutative
• When multiplying two positive whole numbers, the answer will always be larger than either of the starting numbers.
• When you divide a whole number by another whole number, the answer will always be smaller than the original member

Key Vocabulary

Addition and Subtraction

Total

Equal to

Sum

Ones, tens, hundreds and thousands, then thousands, hundred thousands

Difference between

Subtract

Take away

Add

Inverse

Total

Increase

Commutative

Multiplication and Division

Product

Multiply

Divide

Array

Factor pairs

Share

Divide

Divisible

Remainder

Grid method

Chunking

Key Concepts –Topic – Time and Area

• Area is measured in units squared.
• We find area multiplying the width by the length.
• Children can use their knowledge of rectilinear shapes to find the area of compound shapes.
• Children can estimate to check their answers.
• It is important that children know that there are 52 weeks and 1 day in a normal year and 52 weeks and 2 days in a leap year.

Key Vocabulary

Time

Analogue clock

Digital clock

a.m., p.m.

Area

Square centimetre (cm2)

square metre (m2),

square millimetre (mm2)

Common Misconceptions – Calculations

Formal methods may not always be the most effective, efficient or appropriate to use.

Children will transpose the digits in a subtraction if the digit on top is larger than the digit on the bottom.

Place value is not adhered to, particularly with decimal calculations.

Common Misconception – Topic – Time and Area

Inaccurate multiplications cause incorrect answers.

Children do not find the area of both parts of a compound shape to add together to find the total area.

Children do not know the numbers of days in a particular month or a leap year.