Math Mania: Brain Teasers
100
If 2b + 5 = 3b + 8, what is the value of 7b × 5?
Who is -105?
200
What is the value of the quantity 33 over 97 plus 15 over 45, plus 64 over 97? Express your answer as a common fraction.
What is 4/3?
300
What is 120?
400
What is the value of the product 0.75 × 88?
What is 66?
500
Fiona is 30 years old, and her daughter is one-third Fiona’s age. In how many years will Fiona’s daughter be half as old as Fiona?
What is 10?