Year 10
Core
Year 10
Core

Subtract directed numbers

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Lesson details

Key learning points

  1. In this lesson, we will recap subtracting directed (+ -) numbers using visual representations such as double sided counters to aid understanding.

Licence

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5 Questions

Q1.
Which calculation do these counters represent?
An image in a quiz
-3 + 4 = -1
Correct answer: 3 + -4 = -1
3 + -4 = 1
3 + 4 = 7
Q2.
Q2) Calculate -4 + 7
-11
-3
11
Correct answer: 3
Q3.
Q3) Evaluate 4 + -7
-11
Correct answer: -3
11
3
Q4.
Q4) Work out -4 + -7
Correct answer: -11
-3
11
3
Q5.
Find the Missing number
An image in a quiz
-10
-16
10
Correct answer: 16

5 Questions

Q1.
Which 'calculation' do the counters represent?
An image in a quiz
-1 + 4 = 3
Correct answer: 3 - 4 = -1
3 + 1 = 4
4 - 1 = 3
Q2.
Calculate - 2 - 7
- 5
Correct answer: - 9
5
9
Q3.
Calculate - 2 - - 7
- 5
- 9
Correct answer: 5
9
Q4.
What is the difference in temperature between Newcastle and Capetown?
An image in a quiz
- 12 degrees
- 4 degrees
Correct answer: 12 degrees
4 degrees
Q5.
Find the missing number
An image in a quiz
-10
Correct answer: -16
10
16