Subtract directed numbers
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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.
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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