Year 7
Associativity
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Lesson details
Key learning points
- In this lesson, we will learn about the associative property and how it can make calculations easier.
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.
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5 Questions
Q1.
Fill in the blank in the following model to represent the calculation 4×9=9×4/ What would go in the top box?
1
36
9
Q2.
If one yellow rod is length 3, what calculation works out the total lengths of the yellow rods?
3 x 3
3 x 7
Q3.
There are 60 sweets in total. Zaki shares the sweets between 10 people. How much do they each get? Which calculation shows this problem, and is it grouping or sharing?
60 ÷ 10 grouping
60 ÷ 6 grouping
60 ÷ 6 sharing
Q4.
There are 60 sweets in total. Zaki puts the sweets into bags of 10 sweets. How many bags are there? Which calculation shows this problem, and is it grouping or sharing?
60 ÷ 10 sharing
60 ÷ 6 grouping
60 ÷ 6 sharing
Q5.
Which one of the following is commutative?
Division
Subtraction
5 Questions
Q1.
Fill in the blank: 15 x 16 = 15 x (___ x 8)
16
8
Q2.
Fill in the blank: 15 x 16 = (5 x ___) x 16
15
2
Q3.
Fill in the blank: 36 x 25 = ___ x 100
2
4
8
Q4.
Fill in the blank: 55 x 20 = ___ x 100
20
5
55
Q5.
Fill in the blank: 2.2×50 = ___ x 100
1
2.2
4.4