# Parts of Sequences

## Find the formula that describes the part of the sequence that can be seen

##### Word 1Word 2Word 3Word 4Word 5Trophy
A

$$2n+3$$

E

$$8n+4$$

D

$$3n+1$$

H

$$n+10$$

L

$$5n-7$$

N

$$4n+3$$

V

$$6n-1$$

Y

$$7n-3$$

14, 15, 16, 17, 18

13, 15, 17, 19, 21

3, 8, 13, 18, 23, 28

23, 29, 35, 41, 47

12, 20, 28, 26, 44

Type the letters of the formulas for the nth terms of the parts of sequences shown above.

B

$$10-3n$$

E

$$3n+10$$

F

$$7-2n$$

H

$$7+2n$$

K

$$6-2n$$

M

$$6+2n$$

R

$$5(n-7)$$

T

$$5(7-n)$$

-15, -20, -25, -30

27, 29, 31, 33, 35

25, 30, 35, 40, 45

16, 19, 22, 25, 28

31, 34, 37, 40, 43

Type the letters of the formulas for the nth terms of the parts of sequences shown above.

A

$$2^n$$

E

$$3(2^n)$$

I

$$3^n$$

L

$$2(3^n)$$

M

$$15-2^n$$

S

$$30-3^n$$

T

$$2(5-2^n)$$

U

$$2^n-7$$

6, 2, -6, -22, -54

3, 9, 27, 81, 243

11, 7, -1, -17, -49

12, 24, 48, 96, 192

27, 21, 3, -51, -213

Type the letters of the formulas for the nth terms of the parts of sequences shown above.

I

$$5 \times 2^n$$

U

$$(n-1)^2$$

A

$$n^3 - n^2$$

S

$$2n+n^2$$

E

$$33-n^3$$

N

$$n(n-3)$$

O

$$5n(n+1)$$

M

$$n^2-1$$

35, 48, 63, 80, 99, 120

10, 20, 40, 80, 160

10, 18, 28, 40, 54, 70

16, 25, 36, 49, 64

24, 35, 48, 63, 80, 99

Type the letters of the formulas for the nth terms of the parts of sequences shown above.

A

$$\frac{n^2}{3n-1}$$

E

$$n^2-37$$

I

$$\frac{n^2}{n-1}$$

N

$$(n-2)^2$$

O

$$\frac{24}{n}$$

S

$$\frac12n(n-1)$$

T

$$\sqrt{n^3}$$

V

$$n^n$$

10, 15, 21, 28, 36, 45, 55

27, 44, 63, 84, 107, 132

1, 4, 27, 256, 3125, 46656

-33, -28, -21, -12, -1, 12

16, 25, 36, 49, 64, 81, 100

Type the letters of the formulas for the nth terms of the parts of sequences shown above.

_ _ _ _ _   _ _ _ _ _   _ _ _ _ _   _ _ _ _ _   _ _ _ _ _

When you have found the five words you will see that together they make a sentence. That sentence is an instruction to do a calculation.

Enter the result of that calculation into the box below:

If you have entered all five words correctly and found the result of the calculation you will be awarded a trophy.

Check

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