Maths Test 19th October Flashcards

1
Q

A box contains 120 sweets. Ali, Billy and Caleb share the sweets in the ratio 4:7:1. Work out how many more sweets Billy receives than Ali.

A

30

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2
Q

Share £40 in 3:2

A

24:16

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3
Q

Simplify 20:32

A

5:8

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4
Q

28 * 24

A

672

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5
Q

11 * 5d

A

55d

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6
Q

t * t * t

A

t cubed

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7
Q

(2a) squared

A

4a squared

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8
Q

n(n+3)

A

n (squared) + 3n

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9
Q

3n(n+2)

A

3n (squared) + 6n

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10
Q

2e(3e+1)

A

6e (squared) +2e

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11
Q

5(2n - 1) -3n

A

7n - 7

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12
Q

5(a + 2) +3(2a +1)

A

11a+3

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13
Q

5(2x + 1) = 3(x - 2)

A

x = - 1/7

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14
Q

4 (3 - x) = 2(2 + 1)

A

10/8 = x

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15
Q

2(4 - y) -3(y + 3)

A

y = 2

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16
Q

The number of days, D, to complete research is inversely proportional to the number of researchers, R, who are working. The research takes 125 days to complete is 16 people work on it. Find how many people are needed to complete the research in 40 days.

A

50

17
Q

6a squared - a (Factorise)

A

a (6a - 1)

18
Q

Angles on a straight line add up to…?

A

180!

19
Q

Angles around a point add up to…?

A

360

20
Q

Angles in a triangle add up to…?

A

180

21
Q

Alternate angels are..? and what letter are they?

A

Alternate are equal and come in a Z shape!

22
Q

Co-interior angels add up to…? and what letter are they?

A

Co-interior add up to 180. They are C shape!

23
Q

Corresponding angles are…? and what letter are they?

A

Corresponding angles equal and they come in a F shape!

24
Q

How do you calculate the total interior angles in a regular polygon?

A

(n-2) * 180

25
Q

How do calculate the total exterior angles?

A

360/n