20, to the nearest ten.
4 x 4 = 16
Percentage mark up.
Approximately 790 (792).
It goes approximately 4.886 times.
A steeringwheel can turn around 3 times
Approximately 25.7143
It depends on the shape you are attempting to compute the volume of. If you are attempting to compute the volume of a box (eight sides, each perpendicular), then it is simply length times width times height.
The area of a circle is: pi times radius squared
You could circle the earth at the equator 261 times, approximately.
Times the diametre by pi
Divide it by 100 and then times it by itself
The precise answer to 784 x 4 is 3136, but if I wanted to round it off I could say that the amount is approximately 3000.
the area of a circle is pi times the radius squared, the radius being half the diameter. Pi is approximately 3.14
The patterns and properties to compute mentally 120 times 30 is the numbers 12 and 3 plus the two 0. Multiply 12 by 3 (36) and add the two 0 (3600).
Percentage mark up.
It is possible to compute numbers larger than can be written using normal mathematics. There is an algorithm that is used to compute the decimal expansion of pi. It is easy to compute the sum of all the counting numbers from one to 100. Add the highest and lowest, and you will get 101. Add the next highest, 99, and the next lowest, two, and you will again get 101. If you continue in this way to compute the sums, you will have the sum 101, computed 50 times. Now compute the product of 50 and 101, and you will get 5050. This is the sum of all the counting numbers from one to 100.
If its 54 inches in diameter (all the way across), that would be 27 squared times pi or approximately 2290.2 square inches
Wheels are round now and have always been round.