4(3 – 2x) - Teachit Maths

Expanding brackets – question trade
Answer
Question
2x
3(2x + 4)
3
Answer
Question
2x
5(2x + 1)
+1
5
Answer
Question
3
4(3 – 2x)
- 2x
4
Answer
Question
4x
7(4x + 1)
+1
7
Answer
Question
x
3(x - 5)
-5
3
Answer
Question
3x
8(3x – 1)
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Expanding brackets – question trade
Answer
Question
2x
7(2x - 1)
7
Answer
Question
3x
4(3x + 4)
+4
4
Answer
Question
x
2(x + 1)
+1
2
Answer
Question
2
3(2 - 3x)
- 3x
3
Answer
Question
x
7(x - 6)
-6
7
Answer
Question
4x
2(4x + 1)
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Expanding brackets – question trade
Answer
Question
x
8(x - 3)
8
Answer
Question
x
5(x + 6)
+6
5
Answer
Question
3x
4(3x - 2)
-2
4
Answer
Question
3x
7(3x - 4)
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7
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Expanding brackets – question trade
Answer
Question
-6
-2(-6 - 2x)
-2
Answer
Question
8x
-4(8x - 3)
-3
-4
Answer
Question
3
-5(3 + 4x)
+ 4x
-5
Answer
Question
3
-6(3 - 2x)
- 2x
-6
Answer
Question
2
-8(2 - 4x)
- 4x
-8
Answer
Question
8
-2(8 + 7x)
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- 2x
+ 7x
-2
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Expanding brackets – question trade
Answer
Question
x
-3(x + 1)
-3
Answer
Question
2x
-2(2x + 5)
+5
-2
Answer
Question
2x
-3(2x - 3)
-3
-3
Answer
Question
6
-7(6 - 2x)
- 2x
-7
Answer
Question
4x
-5(4x + 3)
+3
-5
Answer
Question
9
-6(9 - 4x)
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- 4x
-6
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Expanding brackets – question trade
Answer
Question
4x
-4(4x - 3)
-4
Answer
Question
6
-3(6 - 8x)
- 8x
-3
Answer
Question
2
-5(2 + 2x)
+ 2x
-5
Answer
Question
6x
-2(6x + 3)
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Expanding brackets – question trade
Answer sheet
You will be given a card consisting of a question and an answer space. Fill in the answer
and fold down the middle to create a double-sided card.
Find a partner and test each other with each of your question cards. Record each
question and answer in the table below. Once you have answered each other’s
questions correctly, swap cards and find a different partner.
Your aim is to find and answer all questions in the set (you may not need all the spaces –
your teacher will tell you how many cards there are to find).
Question
Answer
Question
1
17
2
18
3
19
4
20
5
21
6
22
7
23
8
24
9
25
10
26
11
27
12
28
13
29
14
30
15
31
16
32
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Answer
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Expanding brackets – question trade
Teaching notes
This resource contains two sets of cards:
 The green set uses positive multipliers.
 The blue set uses negative multipliers.
The sets can be used separately (16 cards in each) or together to give a mix of questions
(32 cards). Each set uses the layout for the grid method to expand brackets.
Print the cards and cut along the dotted lines only, creating long cards each with a
question and answer space. Give one card and one answer sheet to each student,
asking them to complete their own double-sided question card by filling in the answer
then folding the card down the middle.
The instructions for students are given on the answer sheets, but they may need
clarification on what to do if they meet the same question twice – they should still
answer the questions and trade cards, but they should not record the answer again on
their sheet.
Answers
Green set
Blue set
Question
Answer
Question
Answer
3(2x + 4)
6x + 12
-2(-6 – 2x)
12 + 4x
5(2x + 1)
10x + 5
-4(8x – 3)
-32x + 12
4(3 – 2x)
12 – 8x
-5(3 + 4x)
-15 – 20x
7(4x + 1)
28x + 7
-6(3 – 2x)
-18 + 12x
3(x – 5)
3x – 15
-8(2 – 4x)
-16 + 32x
8(3x – 1)
24x – 8
-2(8 + 7x)
-16 – 56x
7(2x – 1)
14x – 7
-3(x + 1)
-3x – 3
4(3x + 4)
12x + 16
-2(2x + 5)
-4x - 10
2(x + 1)
2x + 2
-3(2x – 3)
-6x + 9
3(2 – 3x)
6 – 9x
-7(6 – 2x)
-42 + 14x
7(x – 6)
7x – 42
-5(4x + 3)
-20x – 15
2(4x + 1)
8x + 2
-6(9 – 4x)
-54 + 24x
8(x – 3)
8x – 24
-4(4x – 3)
-16x + 12
5(x + 6)
5x + 30
-3(6 – 8x)
-18 + 24x
4(3x – 2)
12x – 8
-5(2 + 2x)
-10 – 10x
7(3x – 4)
21x - 28
-2(6x + 3)
-12x - 6
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