ladybug37072
ladybug37072 ladybug37072
  • 02-10-2016
  • Mathematics
contestada

explain how to find 40 X 50 using mental math

Respuesta :

love2study
love2study love2study
  • 02-10-2016
first do 4x5 and then times by a hundred.
4x5=20
20×100=2000
so just add on the 2 zeros

Answer Link
ClutchMode
ClutchMode ClutchMode
  • 02-10-2016
just do 4 times 5 which is 20 and then add 2 more zeros and you get 2000
Answer Link

Otras preguntas

plz help asap math isn't my thing
Why were portraits important in early history? Using key terms from the lesson, describe the above self-portrait by Rembrandt.
Steve goes to see Devan because he cannot harvest the wheat in his field. The engine for his harvesting equipment is not functioning. After getting the equipmen
When cells perform photosynthesis, they transform energy from one form to another, what takes place during photosynthesis?
How many moles of no2 are equivalent to 74.3g of no2
Charles is planning on driving his car to the family reunion. The distance to the meeting place is 1356 miles. If his car gets 30 mpg, how many gallons of gas w
A system at chemical equilibrium _____. A) consumes energy at a steady rate B) releases energy at a steady rate C) has zero kinetic energy D) can do no work
An increase in the standard of living results from an increase in which of the following?​
how much e 67 + 78-78 =
Who is Beatty in Fahrenheit 451