math concepts

12

Audrey and Lauren began reading a novel on the same day. Audrey reads 8 pages a day and Lauren reads 4 pages a day. If Audrey is on page 24, on what page is Lauren?

26 31 36 Arithmetic

The next 3 terms of 1, 6, 11, 16, 21 are ___, ___, and ___. Is this sequence arithmetic or geometric?

61 70 79 Arithmetic

The next 3 terms of 16, 25, 34, 43, 52 are ___, ___, and ___. Is this sequence arithmetic or geometric?

860 years

The school population for a certain school is predicted to increase by 40 students per year for the next 9 years. If the current enrollment is 500 students, what will the enrollment be after 9 years?

9

The tens digit in 278,193 is ___.

yes

Use Venn Diagrams to determine if (M U N) U O= M U (N U O) is true.

2 5 8 11 14

What are the first 5 terms of 3n-1?

7 13 19 25 31

What are the first 5 terms of 6n+1?

7 16 25 34 43

What are the first 5 terms of 9n-2?

proper subset

What does this symbol mean? the definition is: if B is a _______ of A, then all elements of B are in A.

eighty-three million, six hundred ninety-one thousand, two hundred fourteen

Write out 83,691,214

25

all rows, columns, and diagonals sum to the same number. find the value for a 6 a 17 27 16 b c d 26

5

all rows, columns, and diagonals sum to the same number. find the value for b 6 a 17 27 16 b c d 26

15

all rows, columns, and diagonals sum to the same number. find the value for c 6 a 17 27 16 b c d 26

7

all rows, columns, and diagonals sum to the same number. find the value for d 6 a 17 27 16 b c d 26

yes

can the sets {1,2,3,4,5} and {m,n,o,b,t} be placed in a one-to-one correspondence?

no

can the sets {a,b,c,...,f} and {2,4,6,...,10} be placed in a one-to-one correspondence?

Since there are only 2 different colors of socks in the drawer, a group of 3 socks will always have two of the same color

explain why in a drawer containing only two different colors of socks one must draw only three socks to find a matching pair.

7605

find the sum: 40+41+42+43+...+128+129

3020002

rewrite as a base-ten numeral: 3 X 10^6 + 2 X 10^4 +2

P = {t,b,q,d}

rewrite using mathematical symbols: P is equal to the set containing t, b, q, and d.

165 miles

As you leave Clark, the sign says Lutherville 115 miles, Otisburg 215 miles. If the Planet Diner is halfway between Lutherville and Otisburg, how far is it from Clark?

K without J

Explain K - J

6

Four people come to a party and shake hands with each other. If each person shakes the hand of every other person, how many handshakes occur?

6

How many ways can you make change for 35¢ using only nickels, dimes, and quarters?

Looking back allows a student to check that the answer is correct and makes sense in context of the problem.

John asks why the last step of Polya's four step problem solving process, looking back, is necessary since he has already given the answer. what can you tell him?

Joan, Shana, Roman, Lyle

Lyle, Joan, Roman, and Shana are in a horse race. Joan is the slowest. Roman is faster than Shana but slower than Lyle. Name the finishing order of the horses from last place to first place.

Venn Diagram

Name the diagram:

19

Of the eighth graders at the paxton school, 8 played basketball, 9 played volleyball, 10 played soccer, 1 played basketball, and soccer only, 2 played volleyball and soccer only , 1 played basketball and volleyball only, and 2 played volleyball, basketball, and soccer. How many played one or more of the three sports?