Mental Math
Grade 4
1. What is one hundred minus thirty five?
2. What is the area of a square with side length five?
3. It takes two minutes to brush your teeth, and it takes thirty seconds to walk from the bathroom to
your room. If you start in your room, how many minutes will it take to walk to the bathroom,
brush your teeth, and walk back?
4. What is the product of two, three, and four?
5. If I have a collection of twenty-five stamps in my stamp collection, how many pages could I fill in
my stamp book if each page holds five stamps?
SWITCH TEAM MEMBERS___________________________________________
6. If you begin with two feet of rope, and you cut off ten inches of the rope to give a friend to use,
how many inches of rope will you have left?
7. What is fifty percent of eighty?
8. Start with ten, add five, then divide by three. What number do you get?
9. What is the square root of sixteen?
10. If I start biking at 4:15pm and I stop biking at 5:30pm, how many minutes was I biking for?
SWITCH TEAM MEMBERS___________________________________________
11. If I walk two steps forward and then five steps backwards, how many steps forward should I take
to get back to where I was originally?
12. If I start with twelve pieces of candy from Halloween and pass out two pieces of candy each to
four friends, how many pieces of candy will I have left?
13. If you are traveling at the constant speed of sixty miles per hour, how many miles will you have
traveled after three hours?
14. How many more sides does a pentagon have than a triangle?
15. What is the sum of one and one-half, and two and one-half?
SWITCH TEAM MEMBERS___________________________________________
Mental Math
Grade 4
16. What is the product of the first two prime numbers?
17. If a square has a perimeter of twenty-four inches, how many inches in length is each side?
18. What is the average score of two tests, given that the scores were thirty and fifty?
19. If I have three coins, what is the second smallest amount of money, in cents, that I could have?
20. What is the positive difference between the sum and the product of three and four?
Mental Math
Grade 5
1. What is the area of a square with side length five?
2. It takes two minutes to brush your teeth, and it takes thirty seconds to walk from the bathroom to
your room. If you start in your room, how many minutes will it take to walk to the bathroom,
brush your teeth, and walk back?
3. What is the product of two, three, and four?
4. If I have a collection of twenty-five stamps in my stamp collection, how many pages could I fill in
my stamp book if each page holds five stamps?
5. If the area of a square is one-hundred-forty-four square centimeters, how long is one of the sides?
SWITCH TEAM MEMBERS___________________________________________
6. What is fifty percent of eighty?
7. Start with ten, add five, then divide by three. What number do you get?
8. What is the square root of sixteen?
9.
If I start biking at 4:15pm and I stop biking at 5:30pm, how many minutes was I biking for?
10. What is the sum of the first four prime numbers?
SWITCH TEAM MEMBERS___________________________________________
11. If I start with twelve pieces of candy from Halloween and pass out two pieces of candy each to
four friends, how many pieces of candy will I have left?
12. If you are traveling at the constant speed of sixty miles per hour, how many miles will you have
traveled after three hours?
13. How many more sides does a pentagon have than a triangle?
14. What is the sum of one and one-half, and two and one-half?
15. If you begin with the number twelve, double the number, then subtract one-third of the result, what
do you get?
SWITCH TEAM MEMBERS___________________________________________
16. If a square has a perimeter of twenty-four inches, how many inches in length is each side?
Mental Math
Grade 5
17. What is the average score of two tests, given that the scores were thirty and fifty?
18. If I have three coins, what is the second smallest amount of money, in cents, that I could have?
19. What is the positive difference between the sum and the product of three and four?
20. What is the perimeter of a square whose area is one-hundred-forty-four square feet?
Mental Math
Grade 6
1. It takes two minutes to brush your teeth, and it takes thirty seconds to walk from the bathroom to
your room. If you start in your room, how many minutes will it take to walk to the bathroom,
brush your teeth, and walk back?
2. What is the product of two, three, and four?
3. If I have a collection of twenty-five stamps in my stamp collection, how many pages could I fill in
my stamp book if each page holds five stamps?
4. If the area of a square is one-hundred-forty-four square centimeters, how long is one of the sides?
5. If I walk three yards, and my friend walks ten feet, how many more feet did my friend walk than
me?
SWITCH TEAM MEMBERS___________________________________________
6. Start with ten, add five, then divide by three. What number do you get?
7. What is the square root of sixteen?
8.
If I start biking at 4:15pm and I stop biking at 5:30pm, how many minutes was I biking for?
9. What is the sum of the first four prime numbers?
10. If three quarters were to be thrown into a pot, then magically double three times, how many
quarters would then be in the pot?
SWITCH TEAM MEMBERS___________________________________________
11. If you are traveling at the constant speed of sixty miles per hour, how many miles will you have
traveled after three hours?
12. How many more sides does a pentagon have than a triangle?
13. What is the sum of one and one-half, and two and one-half?
14. If you begin with the number twelve, double the number, then subtract one-third of the result, what
do you get?
15. A train passes by station A traveling thirty miles per hour. If station B is seventy-five miles away,
how many hours will it take to pass station B?
SWITCH TEAM MEMBERS___________________________________________
Mental Math
Grade 6
16. What is the average score of two tests, given that the scores were thirty and fifty?
17. If I have three coins, what is the second smallest amount of money, in cents, that I could have?
18. What is the positive difference between the sum and the product of three and four?
19. What is the perimeter of a square whose area is one-hundred-forty-four square feet?
20. If there are four blue marbles, two red marbles, and seven white marbles in a bag, what is the
probability that a randomly chosen marble will not be red?
Mental Math
Grade 7
1. What is the product of two, three, and four?
2. If I have a collection of twenty-five stamps in my stamp collection, how many pages could I fill in
my stamp book if each page holds five stamps?
3. If the area of a square is one-hundred-forty-four square centimeters, how long is one of the sides?
4. If I walk three yards, and my friend walks ten feet, how many more feet did my friend walk than
me?
5. What is the area of a right triangle whose sides have length three, four, and five?
SWITCH TEAM MEMBERS___________________________________________
6. What is the square root of sixteen?
7.
If I start biking at 4:15pm and I stop biking at 5:30pm, how many minutes was I biking for?
8. What is the sum of the first four prime numbers?
9. If three quarters were to be thrown into a pot, then magically double three times, how many
quarters would then be in the pot?
10. What is the greatest common factor of fifteen and one-hundred?
SWITCH TEAM MEMBERS___________________________________________
11. How many more sides does a pentagon have than a triangle?
12. What is the sum of one and one-half, and two and one-half?
13. If you begin with the number twelve, double the number, then subtract one-third of the result, what
do you get?
14. A train passes by station A traveling thirty miles per hour. If station B is seventy-five miles away,
how many hours will it take to pass station B?
15. A business decides to buy an item for twenty-five dollars, sell it for thirty-five dollars, then later
decides to buy it again at forty dollars, and sell it at fifty-five dollars. How much profit did they
make?
SWITCH TEAM MEMBERS___________________________________________
16. If I have three coins, what is the second smallest amount of money, in cents, that I could have?
Mental Math
Grade 7
17. What is the positive difference between the sum and the product of three and four?
18. What is the perimeter of a square whose area is one-hundred-forty-four square feet?
19. If there are four blue marbles, two red marbles, and seven white marbles in a bag, what is the
probability that a randomly chosen marble will not be red?
20. How many seconds are in one hour?
Mental Math
Grade 8
1. If I have a collection of twenty-five stamps in my stamp collection, how many pages could I fill in
my stamp book if each page holds five stamps?
2. If the area of a square is one-hundred-forty-four square centimeters, how long is one of the sides?
3. If I walk three yards, and my friend walks ten feet, how many more feet did my friend walk than
me?
4. What is the area of a right triangle whose sides have length three, four, and five?
5. Twenty-five percent of what number is forty?
SWITCH TEAM MEMBERS___________________________________________
6.
If I start biking at 4:15pm and I stop biking at 5:30pm, how many minutes was I biking for?
7. What is the sum of the first four prime numbers?
8. If three quarters were to be thrown into a pot, then magically double three times, how many
quarters would then be in the pot?
9. What is the greatest common factor of fifteen and one-hundred?
10. If a circle has area one-hundred-twenty-one pi, what is the diameter of the circle?
SWITCH TEAM MEMBERS___________________________________________
11. What is the sum of one and one-half, and two and one-half?
12. If you begin with the number twelve, double the number, then subtract one-third of the result, what
do you get?
13. A train passes by station A traveling thirty miles per hour. If station B is seventy-five miles away,
how many hours will it take to pass station B?
14. A business decides to buy an item for twenty-five dollars, sell it for thirty-five dollars, then later
decides to buy it again at forty dollars, and sell it at fifty-five dollars. How much profit did they
make?
15. If you are rolling two fair dice, what is the probability that the sum of the numbers on the two dice
will be three?
SWITCH TEAM MEMBERS___________________________________________
Mental Math
Grade 8
16. What is the positive difference between the sum and the product of three and four?
17. What is the perimeter of a square whose area is one-hundred-forty-four square feet?
18. If there are four blue marbles, two red marbles, and seven white marbles in a bag, what is the
probability that a randomly chosen marble will not be red?
19. How many seconds are in one hour?
20. Each day late you return your book to the local library, they charge you seventy-five cents. If the
book costs eleven dollars, how many full days will it take to accumulate a charge equal to the cost
of the book?