Form 2 Math Chapter 1

The diagram shows the arrangements of circles in a particular pattern. How many circles are there in the 5th arrangement?

The diagram shows a hanging decoration arranged by Atilia. Which row will have an arrangement of three shapes?

3871, 3872,x, 3877, 3881, ...

The value of x in the number sequence above is

• 3873

• 3874

• 3875

• 3876

Answer explanation

+1 , +2, +3, +4, ...

The following are Fibonacci Numbers.

0, x, 1, y, 3, ...

Find the value of x+y.

• 3

• 4

• 2

• 1

The diagram shows a sequence of shapes.

How many circles are there in the 7th shape?

• 12

• 10

• 18

• 14

State the pattern of the number sequence 17, 7, -3, -13, ...

• +7

• -7

• +10

• -10

Describe the pattern of the number sequence 128, 120, 112, 104, 96, ...

• Subtract 8 to the previous number.

• Subtract 10 to the previous number

• Subtract 8 from the previous number

• Subtract 10 from the previous number

Describe the pattern of the number sequence 57088, 14272, 3568, 892, ...

• Divide the previous number by 4.

• Divide the previous number by 6.

• Divide the previous number by 3.

• Divide the previous number by 5.

The diagram shows a few numbered cards. Choose and arrange 4 cards that can form a number sequence.

The diagram shows a pattern.

Determine the number of triangles for the 12th term.

• 37

• 40

• 34

• 31