13
91 timesjust do:2/100=502/80=402/2=150+40+1=9191.. without the aid of a calculator !
It equals 80.You can also use a calculator.
The formula to figure out the circumference of a circle is C=2(pi)r. So with a circle that has a radius of 40 inches, you can set up the formula like: C=2(pi)40. To figure this out on a calculator, multiply 2 with pi and then multiply that answer with 40. If you do not have a pi symbol on your calculator you can multiply 2 with 3.14159 then multiply that answer with 40.
40 is the answer
2/5, or two fifths. if you type in 2 divided by 5 on a calculator, it'll say ".4", which is 40%
80
You could try 80/2
Yes. There are numerous ways this could be done, assuming the multiplication and division keys are working. 20 x 2 = 40 8 x 5 = 40 16 x 2.5 80 / 2 = 40 120 / 3 = 40 200 / 5 = 40
50 percent times 40 = 2050% * 40= 50%/100% * 40= 5/10 * 40= 1/2 * 40= 40/2= 20
If using a calculator type in 40 divided by 100 and multiplied by 20. Ans: 8 However, if not using a calculator take 10% = 4 and multiply by 2. Ans:8
20 * 2 = 40