Quiz Answer Key and Fun Facts
1. The first problem does not seem all that hard - all your teacher wants you to do is multiply a number by 2. Unfortunately it's a pretty big number and you do not want to waste too much time solving it. You look at the four multiple choice options, and are relieved when you look at the last digit of each of the numbers. Which of the following options is the only possible answer to this question?
2. Your teacher knows you are pretty smart, so she decides to up the ante and asks you which of the numbers given can be divided by 3. Fortunately, you remember a little trick about the digits of any number divisible by 3. Which of the following is ALWAYS a true statement and can be used to help find the right answer?
3. Your teacher has decided to throw you a curve ball! She asks you which of the following numbers is not divisible by 5. At first you are scared that you have to perform division for four different numbers. However, you look over the list and breathe a sigh of relief. Which of the following numbers is NOT divisible by 5?
4. Perhaps your teacher senses that the last question was a little unfair, so she decides to revert back to asking you to perform multiplication for just one number. This time, she asks you to multiply a number by 10. How can you accomplish this feat quickly?
5. Sometimes you can combine rules to help you with other numbers. That will come in handy, because your teacher has asked you to find a multiple of 6. You realize that 6 is a multiple of two other numbers and you already have shortcuts for them. what are those two numbers, which can be used to help you find the multiple of 6?
6. You are halfway there! These hints are saving you time, but you know it's going to be close. Perhaps realizing that you might run of out of time, your teacher decides to ask you a question that may be helpful later on if you need to randomly guess an answer. Your teacher asks you to look at the following options. Which one will give an odd number for an answer?
7. You look at the quiz and are befuddled. The problem calls for you to multiply the number 16 and 19. You know you are running short on time and you figure your best best bet is to estimate the answer by substituting easy number to multiply. Which of the following will yield the closest estimate to the real value?
8. You can see the end of the quiz, but you don't have time to relax quite yet. The teacher seems primed to stump you and gives you four different numbers. She then asks you to identify which number is prime (has no factors other than 1 and itself). Can you use some multiplication shortcuts to identify the prime number from the choices below?
9. To keep things even, your teacher decides to flip the question around. This time, she gives you a list of four numbers and asks you to find the composite one (has factors other than 1 and itself). Can you find the composite number by using what you know about multiplication?
10. You've made it to end. Are you feeling excited? Your teacher must be, because the final question asks you to find the value of "6!". While 6 can be a pretty exciting number, your teacher probably didn't put that "!" at the end by accident. It's more likely she is using the notation for a factorial and wants to know what the value of 6 x 5 x 4 x 3 x 2 x 1 is. Can you help her out?
Source: Author
kstyle53
This quiz was reviewed by FunTrivia editor
NatalieW before going online.
Any errors found in FunTrivia content are routinely corrected through our feedback system.