Year 7

Year 7

# Inequalities

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## Slide deck

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## Lesson details

### Key learning points

1. In this lesson, we will use bar modelling to identify and form inequalities.

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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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## Worksheet

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## Starter quiz

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### 5 Questions

Q1.
Fill in the gap: You can use a known equation to form related equations. When forming a related equation you should check that both sides ______.
Correct answer: Balance
Connect
Multiply
Sum
Q2.
Given that 5 × 12 = 10 × 6, fill in the gap: 5 x 12 + 5 = 10 x 6 + ___.
10
12
Correct answer: 5
6
Q3.
Given that a = 3b, fill in the gap: 2a = ___b.
3
4
Correct answer: 6
9
Q4.
Given that a = 3b, fill in the gap: a + 3b = ___b.
1
4b
Correct answer: 6b
a
Q5.
If c = d + 2, fill in the gap: c - 2 = ___
Correct answer: d
d - 2
d - 4
d + 2

## Exit quiz

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### 5 Questions

Q1.
Fill in the gaps. We can use the symbols __ and __ to express an inequality.
-, +
Correct answer: <, >
=, +
x, y
Q2.
Which inequality represents "a is greater than b"?
a < b
a = b
Correct answer: a > b
b > a
Q3.
Which inequality represents "the sum of b and a is less than c"?
a + b > c
b - a < c
Correct answer: b + a < c
c < a + b
Q4.
Which inequality is true when a = 3?
-a > a -2
Correct answer: 2a > a
a < -5
a x a > 5a
Q5.
Which inequality is true when a = -4?
-a < a -2
2a > a
a < -5
Correct answer: a x a > 5a