anthonybess141 anthonybess141
  • 21-10-2017
  • Mathematics
contestada

explain how to find 40 multiply by 50 using mental math.

Respuesta :

Eveboardman Eveboardman
  • 21-10-2017
Take 4 and multiply it by 5 (which you should be able to do in your head) and then add the two zeros back in so:
4•5= 20
20+0+0=
2000
Answer Link

Otras preguntas

Nutrition Questions1. Identify the six basic nutrients and provide examples of each.2. Explain how each nutrient helps support your body.(Have to have the websi
Which valuation technique do you find most useful in business development and management professional field? Why? What are the main challenges you face when app
According to the following reaction, how many moles of phosphoric acid will be formed upon the complete reaction of 0.949 moles perchloric acid (HCIO4) with exc
PLEASE ANSWER QUICKLY!!!
help help ty ty ty thank you very much
6a. Access the ACWA Community Work Practice Standards at http://www.acwa.org.au/migration- assessment/practic %20standards template % 20.pdf. How does this docu
The author, Julio Cortazar, is from Argentina. What details from the story might reflect his perspective as a South American writer?
carbon- 14 an isotope of carbon is found in all living things. Find information on how archeologists use this to calculate the age of fossils and some ancient r
Explain how the rate of enviromental change depends on the type of succession.​
select one valuation technique (Engagement letters, valuation reports, methodology selection etc..) and discuss how it is being used.