Year 7
Switch to our new maths teaching resources
Slide decks, worksheets, quizzes and lesson planning guidance designed for your classroom.
Play new resources video
Lesson details
Key learning points
- In this lesson, we will use the axioms to find efficient methods to solve multiplication calculations by using distributive, associative and commutative properties.
Licence
This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.
Loading...
5 Questions
Q1.
Which of the calculations below is equivalent to 8 x (9 + 10) ?
9 x (8 + 10)
9 x 10 + 8 x 10
Q2.
Which of the calculations below is equivalent to 9 x 8 + 9 x 10 ?
8 x 9 + 10 x 8
9 x 10 + 8 x 10
Q3.
Which of the calculations below is equivalent to (8 + 9) x 10 ?
8 x 9 + 10 x 8
9 x (8 + 10)
Q4.
3 x ( 11 + 4) = 3 x 11 + 3 x 4 shows what property?
Associativity
Commutativity
Q5.
3 x ( 11 + 4) = (11 + 4) x 3 shows what property?
Associativity
Distributivity
4 Questions
Q1.
This model represents a way to calculate 28×5. What has the model changed the calculation to?
28 x 10
5 x 28
Q2.
This model represents a way to calculate 28×5. What has the model changed the calculation to?
(26 + 2) x 5
30 x 5
Q3.
a x b = b x a
False
True, because multiplication is associative
True, because multiplication is distributive
Q4.
a x (b + c) = a x b + a x c
False
True, because multiplication is associative
True, because multiplication is commutative