Year 7
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Lesson details
Key learning points
- In this lesson, we will learn how to form inequalities related to a known equation.
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 gaps. We can use the symbols __ and __ to express an inequality.
-, +
=, +
x, y
Q2.
Which inequality represents "a is greater than b"?
a < b
a = b
b > a
Q3.
Which inequality represents "the sum of b and a is less than c"?
a + b > c
b - a < c
c < a + b
Q4.
Which inequality is true when a = 3?
-a > a -2
a < -5
a x a > 5a
Q5.
Which inequality is true when a = -4?
-a < a -2
2a > a
a < -5
5 Questions
Q1.
Fill in the gap. We can use an established inequality to form a related ____.
equation
expression
sum
Q2.
If 19 > 14, which symbol would go in the gap: 7 × 19 __ 7 × 14?
+
<
=
Q3.
If 19>14, which symbol would go in the gap: (−3) × 19 __ (−3) × 14?
+
=
>
Q4.
Which of the following inequalities are true when n = 3 and m = -2?
-2n > -2m
n + 3 < m + 3
n < m
Q5.
Which of the following inequalities are always true when a > b?
-3a > -3b
a - 4 > b
a > 7b