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Maths · Grade 6 · Set B
Opposites: Set B
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B
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Goal: 15 min
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Remember: The opposite of a number is the same distance from zero on the other side.

On the number line

1
What number is the dot at?
2
What is the opposite of the number the dot shows?
3
What is the opposite of 9?
9−91/90
4
The three number lines are A on top, B in the middle and C at the bottom. Which one shows a number and its opposite?
ABC
5
A point is 8 units to the right of 0 on a number line. How many units to the left of 0 is its opposite?

Flips and special numbers

6
The opposite of the opposite of 11 is −11.
TrueFalse
7
The dot is at −0.5. What is the opposite of the opposite of −0.5?
8
The dot is at −1.5. What is its opposite?
9
Join each number to its opposite.
  1. 1−9
  2. 220
  3. 3−3/4
  4. 42.5
  • A3/4
  • B9
  • C−20
  • D−2.5
10
Which pair are opposites?
−6 and 66 and 1/6−6 and −1/66 and 0
11
−(−4) = 4
TrueFalse

Stretch

12
Point A is at −3.5. Point B is the opposite of A. How many units apart are A and B?
13
Mark −7 on the number line. Then mark its opposite. Write how far each is from zero.
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Answer key · Set B
Opposites: Set B
1-6 The dot is 6 steps to the left of zero, so it is negative 6.
2-5 The dot is at 5. Its opposite is the same distance from zero on the other side: −5.
3−9 The opposite of 9 is the number the same distance from zero on the other side: −9.
4C Opposites are the same distance from zero on opposite sides. In C both dots are 4 away.
58 An opposite is the same distance from zero, on the other side: 8 units to the left.
6False Flip once to −11, flip again and you are back at 11.
7-0.5 Two flips across zero bring you back to where you started: −0.5.
81.5 The opposite is the same distance from zero on the right: 1.5.
91-B, 2-C, 3-A, 4-D Change the side of zero and keep the size.
10−6 and 6 Opposites are the same distance from zero on opposite sides. −6 and 6 are each 6 away.
11True The opposite of −4 is 4, so −(−4) = 4.
127 B is at 3.5. A is 3.5 left of zero and B is 3.5 right of zero: 3.5 + 3.5 = 7.
Mark each answer, count the right ones and write the score on the sheet.