Easy
50+60=?
110
What is 15 × 7?
105 ✖️
What is the value of √(256) × 3?
48
If a plane crashes on the border of USA and Canada, where do they bury the survivors?
Nowhere — survivors are alive! ✈️
If f(x)=2x3−5x2+4x−7f(x) = 2x^3 - 5x^2 + 4x - 7f(x)=2x3−5x2+4x−7, find f′(x)f'(x)f′(x) and solve f′(x)=0f'(x) = 0f′(x)=0.
f′(x)=6x2−10x+4, solve 6x2−10x+4=06x^2 - 10x + 4 = 06x2−10x+4=0 → x=1x = 1x=1 or x=23x = \frac{2}{3}x=32
What is 5 + 3?
8
What is 144 ÷ 12?
12 ➗
Solve for x: 3x + 7 = 22
x = 5
A bat and a ball cost $1.10 together. The bat costs $1 more than the ball. How much does the ball cost?
$0.05 🏏
limit: limx→0sin(5x)x\lim_{x \to 0} \frac{\sin(5x)}{x}limx→0xsin(5x)
5
What is 10 – 4?
6
If a rectangle has a length of 8 and a width of 5, what is its area?
40 (area = length × width) 📐
If the sum of the angles in a triangle is 180°, and two angles are 65° and 50°, what is the third angle?
65°
How many months have 28 days?
All 12 months! 📅
Solve for x: 2x+1=322^{x+1} = 322x+1=32
x=4
What is 2 × 3?
6
What is 25% of 200?
50
What is the derivative of f(x) = 5x² + 3x with respect to x?
f′(x) = 10x + 3
If it takes 5 machines 5 minutes to make 5 widgets, how long would it take 100 machines to make 100 widgets?
5 minutes ⚙️
If a sequence is defined recursively by a1=2a_1 = 2a1=2 and an+1=3an+1a_{n+1} = 3a_n + 1an+1=3an+1, find a4a_4a4.
a2=7,a3=22,a4=67
What is 12 ÷ 4?
3
What is the next number in the sequence: 2, 4, 8, 16, …?
32 🔢
What is the area of a circle with radius 7? (Use π ≈ 3.14)
153.86 (Area = π × r²)
A farmer had 17 sheep. All but 9 died. How many are left?
9 🐑
What is 9 + 6?
15