Download Sequences and Patterns

Pre-Algebra
Name _________________________
Patterns Notes
Find the next number in the pattern (1-7.1).
1.
42, 51, 49, 58, 56, _____
2.
4, 13, 28, 49, _____
3.
2, 5, 8, 11, ______
4.
1, 4, 10, 20, ______
5.
1, 1, 2, 3, 5, 8, ______
Complete the following (1-7.2).
6.
______________Using the chart below, determine the number of diagonals from a
single vertex in a 10-sided figure.
7.
Triangle
Quadrilateral
Pentagon
Hexagon
Sum of interior
angles
180 degrees
360 degrees
540 degrees
720 degrees
No. of diagonals
from one vertex
0
1
2
No. of sides
3
4
5
3
6
______________The figures below form a pattern. How many dots will be in the fifth
figure of the pattern?
Complete the following (1-8.1).
8.
______________Bacteria doubles every 15 minutes. If you are cut and 22 bacteria
infects you skin, how many bacterium will you have in your cut after one hour?
______________ After two and a half hours?
9.
______________A local restaurant offers a breakfast buffet. The restaurant charges $8
for one person, $16 for two people, $23 for three, $29 for four, and so on. How much
does the restaurant charge for seven people?
10.
______________Sally was offered a job in which she was paid $.01 the first day, $.02
the second day, $.04 the third day, $.08 the fourth day, and so on. On which day was
Sally first paid more than $100?
11.
______________Lucy washes her clothes at the Laundromat every sixth day. Dezi
washes her clothes there ever fifteenth day. If they both was their clothes on the first of
May, when will they both wash their clothes on the same day again?
12.
_____________ and ____________The bird outside Mr. Hartigan’s window chirps
every so many minutes. He first heard it chirp at 9: 08 am, then at 9:25, then at 9:42. If
the bird continues to chirp with this pattern, what will be the time of the next two chirps?
13.
______________A series of numbers can be represented by dots arranged in the pattern
shown below. If the pattern continues in the same manner, what number is represented
by the tenth figure?
14.
______________Elmo sent out 4 cards on Monday, 8 cards on Tuesday, 16 cards on
Wednesday, and 28 cards on Thursday. If this pattern continues, how many cards did
Elmo send out on Saturday?
Complete the following (1-8.2).
15.
2, 6, 18, 54, (what is the 8th number in the sequence) _______
16.
3, 6, 9, 12, (what are the 10th and 11th numbers in the sequence) _______, _______
17.
7, 11, 15, 19, (what are the 8th and 9th numbers in the sequence) _______, ________
18.
3, 7, 15, 31, (what are the 7th and 8th numbers in the sequence) ________, _______