PEMDAS
3+5×2
13
2x+3=9 x=?
3
What is the perimeter of a rectangle with length 8 cm and width 5 cm?
26 cm
A car travels 60 miles per hour. How far will it travel in 3 hours?
180
What is the square root of 144?
12
(8+2)×4
40
4(x−5)=12 x=?
8
What is the area of a triangle with a base of 10 cm and a height of 6 cm?
30cm2
Sarah has 3 apples, and Mike has 5 apples. What is the ratio of Sarah’s apples to Mike’s apples?
3:5
What is the volume of a cube with a side length of 4 cm?
64 cm3
5+6×(2+3)2
155
If the ratio of boys to girls in a classroom is 3:5, how many girls are there if there are 12 boys?
20
How many sides does a hexagon have?
6
If it takes 4 workers 5 hours to build a wall, how many hours will it take 10 workers to build the same wall, assuming the rate of work is constant?
2 hours
If 2x+3=112x + 3 = 112x+3=11, what is the value of x?
4
(4×3+23)÷2−6
4
45 : 50 =
9: 10
What is the area of a circle with a radius of 7 cm? (Use π ≈ 3.14
153,86 cm2
A shirt costs $30, and there is a 20% discount. What is the price after the discount?
$24
What is the solution to the equation x2−16=0?
The solutions are x=4x and x=-4.
3×(2+4)2−5×23÷5
100
3(x+4)−2(x−1)=5x+10 x=?
1
The length of the hypotenuse of a right triangle is 13 cm, and one leg is 5 cm. What is the length of the other leg?
12 cm (Pythagorean Theorem: a2+b2=c2
A garden has a length of 12 meters and a width of 8 meters. How much fencing is needed to surround the garden?
40 meters
What is the derivative of f(x)=3x2+5x+2f(x) = 3x^2 + 5x + 2f(x)=3x2+5x+2?
f′(x)=6x+5