How many Paths from A to B?

Combination Formula.

Pascal's Triangle.

How many handshakes?

Magic Square and Magic Sum.

Complete the magic square given below using the integers

-10, -9, -8, -7, -6, -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5

What is the magic sum?

Arithmetic Sequence.

What is the smallest natural number whose factors include 1, 2, 3,...10?

Least Common Multiple.

How much would you have to invest at 6% compounded annually to have $16,000 in 5 years?

Pigeonhole Principle III.

An average newspaper contains at least 16 pages and at most 87 pages. How many newspapers must be collected to be certain that at least two newspapers have the same number of pages?

How Many Tiles?

There is more than one way to tile a floor.

A certain whole number less than 100 leaves the remainders 1, 2, 3, and 4 when divided respectively by 2, 3, 4, and 5. What is the whole number?

Rule of 72 and Doubling Time in Investments.

The Pigeonhole Principle.

How many red playing cards must be drawn from a single deck of cards to be sure that at least two are from the same suit?

Triangular Numbers

Math 104 Midterm Review 20 Qs.

De Morgan's Laws and Venn Diagrams. With two examples.

Multiplying in base 5.

0:00 Introduction.

0:24 Example1, multiply 432 base five by 204 base 5.

7:00 Example 2, Multiply 321 base five by 24 base 5.

How many paths from C to E?

Adding in Base 5.

Compound Interest Formula ---Two Examples.

Pigeonhole Principle II. How many black playing cards must be drawn from a single deck of cards?

How many black playing cards must be drawn from a single deck of cards to be sure that at least eight are spades or at least eight are clubs?

How Many Rectangles in each Figure?

Math 104 "Math Reasoning for Elementary Teachers". Final Review 20 Questions.

Venn Diagrams Precents.

Repeating Decimal to Fraction.

A Rectangle is twice as long as it is wide and has the same perimeter as a square whose area is 25 square feet larger of the Rectangle. What are the dimensions of both the Rectangle and the Square?

Converting between base 10 and base 5.

0:00 Introduction

0:23 1. Example 1. Convert 97 to base five.

7:44 2. Example 2, Convert 130 to base five.

Convert base 8 to decimal.

Subtracting in Base 4.

Multiply in base 5

Subtracting in Base 5 Four Examples.