Number Challenges: Four 4's & Build A Number

What is the main goal of the Classic 4 Fours challenge?

• To use four fours to create decimal numbers

• To use any numbers to create fractions

• To use exactly four number fours to form whole numbers

• To use four different numbers to create equations

Which mathematical operations can be used in the Classic 4 Fours challenge?

• Only addition and subtraction

• Only multiplication and division

• Only square roots and factorials

• Any mathematical operation

In the Classic 4 Fours challenge, how can the number six be represented?

• 4 + 4 + 4 + 4

• 4 * 4 / 4 + 4

• 4 * 4 - 4 / 4

• 4 + 4 / 4 + 4

What is the unique rule in the Build a Number challenge regarding the use of digits?

• You cannot use any mathematical operations

• You can only use each digit once per expression

• You must use all five digits in every expression

• You can use each digit multiple times

How can the number 17 be created in the Build a Number challenge?

• 5 * 4 + 1

• 5 * 4 - 3

• 5 * 3 + 2

• 5 + 4 + 3 + 2 + 1