Year 10
Core
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Lesson details
Key learning points
- In this lesson, we will recap subtracting directed (+ -) numbers using visual representations such as double sided counters to aid understanding.
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.
Which calculation do these counters represent?
-3 + 4 = -1
3 + -4 = 1
3 + 4 = 7
Q2.
Q2) Calculate -4 + 7
-11
-3
11
Q3.
Q3) Evaluate 4 + -7
-11
11
3
Q4.
Q4) Work out -4 + -7
-3
11
3
Q5.
Find the Missing number
-10
-16
10
5 Questions
Q1.
Which 'calculation' do the counters represent?
-1 + 4 = 3
3 + 1 = 4
4 - 1 = 3
Q2.
Calculate - 2 - 7
- 5
5
9
Q3.
Calculate - 2 - - 7
- 5
- 9
9
Q4.
What is the difference in temperature between Newcastle and Capetown?
- 12 degrees
- 4 degrees
4 degrees
Q5.
Find the missing number
-10
10
16