Math!

Primes

100

What is a prime number?

A number with factors nothing more or less.

200

What is a composite number? 

A number in which has 3 or more factors.

300

What are the 2 special numbers called?

1 and 0.

400

What are the first 25 prime numbers?

 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97.

500

How many factors does 0 have?

Infinite.

Division

100

• Which of these numbers can not be divided by 7 without having a remainder?

• A. 35

• B. 63

• C. 69

• D. 84
  
  

C. 69

200

With out using a calculator how do you know that the number 942 is divisible by 4.

The last 2 digits of the number are(42/4=6).

300

• What is 152/4?

  • A. 38

  • B. 40

  • C. 42

  • D. 44

38

400

999/3=

333

500

how do you know that 1001 is a factor of 333 333

333333/1001=333!

Shapes

100

What is the name of the shape that has 5 sides?

Pentagon

200

What shape has 6 sides?

Hexagon.

300

What shape has 8 sides?

Octogon.

400

• πr2 is the formula forT

  • The area of a circle

  • The area of a cube

  • None of these

  • The area of a triangle

Area of a circle.

500

What is the name of the shape that has 20 sides? 

icosahedron

Multiplication

100

2x9=

18

200

47x3=

141

300

9x14=

126

400

Can you solve this? 47x69=?

• A. 3243

• B. 3300

• C. 6821

• D. 4638

3243

500

What number is this the prime factorization for?3^7x9^2x29^3x=

4320438183