Math Team Battle

Mental Math

100

Mental Math

222-123

99

200

simplify: ln (e^2x)

2x

300

Mental Math

60 - 31 = 

29

400

finish the pythagorean triple  ___, 12, 13

5

500

Mental Math

Elijah's mom said to take a break after lunch at 12:25 p.m. His break was over at 1:10 p.m. How long was his break?

45 minutes

Riddles

100

One brother says of his younger brother: “Two years ago, I was three times as old as my brother was. In three years time, I will be twice as old as my brother.” How old are they each now?

7 and 17

200

What single digit appears most frequently between and including the numbers 1 and 1,000?

The most common digit is 1

300

Using only addition, add eight 8s to get the number 1,000

888 + 88 + 8 + 8 + 8 = 1,000

400

My twin lives at the reverse of my house number. The difference between our house numbers ends in two. What are the lowest possible numbers of our house numbers?

The lowest possible numbers for the houses are 19 and 91. The difference is 72.

500

Old Granny Adams left half her money to her granddaughter and half that amount to her grandson. She left a sixth to her brother, and the remainder, $1,000, to the dogs’ home. How much did she leave altogether?

$12,000

❌

100

What is the supplementary angle of 30 degrees?

150 degrees

200

what is the equation for continuous compound interest?

P(t)=P₀e^rt

300

Solve: log₅(75)-log₅(3)

2

400

A class average on an exam is 70. The average of students who scored below 60 is 50. The average of students who scored 60 or more is 75. If the total number of students in this class is 20, how many students scored below 60?

4

500

find all the discontinuities: F(x)= (3x-3)(x+8)/(x-1)

removable discontinuity at x=1

➗

100

A real estate agent received a 6% commission on a house. If his commission was $8,880, what was the selling price of the house?

$148,000

200

Convert 20pi radians into degrees

3600 degrees

300

For what value of x will the function f(x) = -3(x - 10)(x - 4) have a maximum value?

f(7) = 27

400

solve: d/dx of 3x⁵+4x³-2x+9

15x⁴+12x²-2

500

what is the integral of sin(3x)

-1/3 cos(3x) + C

Trivia

100

Finish the line: Tell Me why....

Ain't nothin' but a heartache  

200

Cardi B is from ...

The Bronx

300

What is the capitol of Wyoming?

Bonus 50pts if you can spell it!

Cheyenne

400

Finish the line from the famous ad: We are Farmers..

Bum ba dum bum bum bum bum!

500

In what country did the first Starbucks open outside of North America?

Japan