Agnessesay2008 Agnessesay2008

11-10-2017
Mathematics

contestada

Explain how to find 40×50 using mental math

Respuesta :

Stochastic Stochastic

11-10-2017

4*5 is 20
add 2 zeroes to the end because of the two you took out from 40 and 50
40*50=2000

Answer Link

daisymaisy daisymaisy

11-10-2017

Using mental math you can look at this a do 4 times 5 = 20 then, add the two zeros back in.. and your answer is 2000 :)

Answer Link

Otras preguntas

If, 2=5 3=10 4=17 5=??

round this number 3.899 to the nearest hundredth

The perimeter of a parallelogram is 46in. If the length of one side is 14in., what is the length of a side adjacent to it?

If, 2=5 3=10 4=17 5=??

If, 2=5 3=10 4=17 5=??

How are radioactive probes useful in DNA fingerprinting

The perimeter of a parallelogram is 46in. If the length of one side is 14in., what is the length of a side adjacent to it?

of the400 doctors who attended a conference, 240 practiced family medicine and 130 were from countries outside the United States. One-third of the family medici

If, 2=5 3=10 4=17 5=??

Find the error Jacob is finding the slope of the line that passes through x(0,2) and y(4,3).circle his mistake and correct it.