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

How many miles can you get on one tank of gas if your tank holds 18 gallons and you get 22 miles per gallon?
Why does Louis XIV want to expand France's border?
How many miles can you get on one tank of gas if your tank holds 18 gallons and you get 22 miles per gallon?
China, Korea, and Japan share cultural similarities in part due to their (1) clashes with Russian imperialists (2) shared river systems (3) contacts through tra
which explorer sailed for france?
how do day and nightat uranus's equator change asthe uranus revolves around the sun?
Which period was the “golden age of dinosaurs”? a. the Triassic Period b. the Jurassic Period c. the Cretaceous Period d. the Tyrannosaurus Period
what does etymology study?
Can someone please help me ?
Why does Louis XIV want to expand France's border?