Sets and Number System

Which of the following is a set?

• A set of intelligent people

• A set of days in a week

• A set of beautiful flowers

• A set of favorite colors

A set in mathematics is…

• A collection of objects or elements

• A single number only

• An arrangement of chairs in a classroom

• A function that maps inputs to outputs

Which of the following is a correct representation of a set?

• {apple, banana, orange}

• (1, 2, 3, 4, 5)

• apple + orange

• “fruits in the basket”

The decimal system is based on…

• Base 2

• Base 8

• Base 10

• Base 16

The way to convert decimal into an octal number is ...

• deviding number by 8

• deviding number by 2

• deviding number by 10

• deviding number by 4

The correct statemen about octal number are ...

• base 10

• consist of 1,2,3,4,5,6,7,8

• base 8

• consist of 0,1,2,3,4,5,6,7

The correct statemen about decimal number are ...

• base 10

• consist of 1,2,3,4,5,6,7,8,9,10

• base 8

• consist of 0,1,2,3,4,5,6,7,9

The correct statemen about binary number are ...

• base 2

• consist of 1,2

• 1 = ON, 0 = OFF

• consist of 0,1

How many children like to play both kite and yo yo?

• 8 children

• 3 children

• 6 children

Look at the Venn Diagram.

How many animals that only live on land?

• 6 animals

• 4 animals

• 8 animals