Free Bachelor of Mathematics: Mathematical Proof and Logic Questions and Answers

Question 1

Which of the following is a way to improve your mental math skills?

Accepted Answer

Practice regularly and consistently

Answer

Always use a calculator for complex problems

Answer

Ignore patterns and shortcuts

Answer

Studying math only when preparing for a test

Question 2

In multiplication by 11, what rule is applied when the sum of two adjacent digits is more than 9?

Accepted Answer

Carry over to the next digit

Answer

The sum becomes a single digit number

Answer

The sum is ignored

Answer

The product becomes zero

Question 3

How does the document suggest dealing with percentages?

Accepted Answer

Convert them to decimals

Answer

Convert them to fractions

Answer

Write them out as words

Answer

Leave them as they are

Question 4

what is the trick to subtracting any number from 1000 quickly?

Accepted Answer

Subtract each digit from 9 and the last from 10

Answer

Add instead of subtracting

Answer

Multiply by -1

Answer

None of these

Question 5

What method does this document suggest for squaring numbers ending in 5?

Accepted Answer

Multiply the first digit by itself plus one and append "25"

Answer

Multiply by 5 and add 25

Answer

Square each digit separately then add them together

Answer

None of these

Question 6

According to this document, multiplying by 4 can be done faster by doing what instead?

Accepted Answer

Multiplying by 2 twice

Answer

Dividing by 0.25

Answer

Adding four times

Answer

Subtracting from a multiple of four

Question 7

What method does this document recommend for multiplying two-digit numbers less than twenty but more than ten together?

Accepted Answer

Apply cross multiplication

Answer

Simply multiply as normal

Answer

Subtract both numbers from twenty then multiply

Answer

Add ten to both numbers then multiply