ashleysolano712
ashleysolano712 ashleysolano712
  • 10-05-2016
  • Mathematics
contestada

how do you find percent of a number mentally

Respuesta :

Natehaig
Natehaig Natehaig
  • 10-05-2016
It isn't easy really but you can always divide the number out. For example 50% of 200 is 100 by dividing 200 by 2 or 25% of 100 is 25 by dividing 100 by 4 since 25% is equivalent to 1/4
Answer Link
iamed9t
iamed9t iamed9t
  • 10-05-2016
Percentage of a number using mental math. Learn how to solve percent problems in your head! Since 10% is 1/10, and it's so easy to find 1/10 of any number, we can use that to quickly calculate certain percentages of quantities in our heads. to find 20% of a number, first find 10% of it, and double that.
Answer Link

Otras preguntas

write the following measurements and scientific notation: 1. 800,000,000 m 2. 0.0015 kg
Nucleic acids consist of nucleotides linked together with IONIC bonds true or false? Explain please?
What are the gases that come to equilibrium between the upper layer of the ocean and the atmosphere?
C= 1/2h(q+z) for q solve for q
Deciduous forests can only be found in North America. True Or false? Please explai
The camera Melissa wanted for her birthday is on sale at 21% off the usual price. The amount of the discount is $79.80. What was the original price of the camer
can u help me with this problem 1/2+-2/5t-1=1/5t+t
784 marbles are shared among X,Y,Z in the ratio 3:2:5. how many marbles that each get?
geoffrey chaucer was known for what literary work
784 marbles are shared among X,Y,Z in the ratio 3:2:5. how many marbles that each get?