Generating sequences
Finding rules for sequences
Using the nth term
Percentages
General
100

Sequence in rissian?

последовательность

100

find the term-to-term rule

6.7, 6.4, 6.1, 5.8,....

subtract 0.3

100

Work out the 8th term of the sequence

0.2n + 1.5

3.1

100

What percentage of 40years is 8 years?

20%

100

How many sides does dodecagon have?

12

200

Fill in the missing terms

8and 3/7, 11and6/7,___, ___, 22and 1/7___

15and 2/7, 18and 5/7, 25and 4/7

200

15, 12, 9, 6,...

18-3n

200

Work out 8th term  5n-2and 1/2

37and 1/2

200

40 is 20% of what?

200

200

work out the 10th term of a sequence

1/2n+8and1/2

13and 1/2

300

Work out the first three terms in each sequence. First term is -6,term-to-term rule is: divide by 2 then add 5.

-6,2,6

300

what is nth term of

1/13, 2/13, 3/13, 4/13...

n/13

300

Find the nth term 

-1and 1/2, -1, -1/2,0 ,....

1/2n-2

300

A metal bar is 1.80 metres long. It is heated and the length increases by 0.5%.

a. What is the absolute increase in length?

b. How long is the bar now?

a.  0.009m  


b. 1.809m    

300

complete these inverse function machines and equation

x→ -3→ *8→ y   equation : y=8(x-3)

x← .....← .....← y  reverse equation: x=....

x=y+3/8

400

The 7th term of a sequence is 442. The term-to-term rule is add 3 then multiply by 2. What is the 4th term of the sequence?

50

400

Find the rules 

1, 4, 9, 16, 25,...

n2

400

find nth term

-0.6, 0.8, 2.2, 3.6,....

1.4n-2

400

A library has 2800 books. Find the number of books if it 

a.increases by 84%

b. decreases by 37%

a. 5152


b. 1764

400

Adam is 28 years older than Bob. In 6 years, Adam will be three times as old as Bob. How old is Adam now?

36

500

what is nth term of

1/9, 2/9, 1/9, 4/95/9, 2/3


n/9

500

What is the sequence  and rule

1  1  2  3  5  8  13   21  ......

Fibonacci sequence  and adding previous two terms to get next term.

500

The nth term expression for a sequence is 2n-3.

Is the number 39 a term in this sequence?

yes, 39 is the 21st term in the sequence.

500

The number a is 200% greater than the number b. The number b is 80% less than 40. What is the value of a?

24

500

1    5     16    34    59  

91

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