Year 7
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Lesson details
Key learning points
- In this lesson, we will investigate how to find the product of two negative numbers.
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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7 Questions
Q1.
Which set of words fill in the gaps in order best? Multiplication by a negative _____________ can be visualised as a _________ in the _____________ direction.
scalar, swing, other
scale factor, stretch, positive right
scales, pull, opposite
Q2.
Select the calculation that the red arrow represents in relation to the given arrow of 5 and state the scale factor
(-3) x 5 = -15 s.f: -5
3 x 5 = 15 s.f: 3
3 x 5 = 15 s.f: 5
Q3.
Which number completes the calculation: ____ x 7 = -21
-28
28
3
Q4.
Which number completes the calculation: (-5) x 2 = (-30) + ____
-10
-20
10
Q5.
Calculate 7 x (-2)
-9
14
5
9
Q6.
Calculate 7 x (-1/2)
-14
14
3.5
Q7.
2 + (-4) x 3 =
-18
-24
-6
6 Questions
Q1.
Fill in the gaps: Multiplication by a ___________________ can be visualised as a stretch in the ___________________ direction.
negative, same
scale factor, longer
scale, opposite
Q2.
Calculate 2 x (-9)
-7
18
7
Q3.
Calculate (-2) x (-9) x (-1)
-7
18
7
Q4.
Given n=-3 what would the value of 4n be?
-34
-43
1
12
Q5.
Given n=-3 what would the value of -4n be?
-12
-7
43
Q6.
The product of two numbers is 20. What could the two numbers be?
-0.5, 40
-5, 4
10, -2