banegasn90
banegasn90 banegasn90
  • 12-10-2018
  • Mathematics
contestada

Write an expression that shows how to use the halving and doubling strategy to find 28x50

Respuesta :

lisboa lisboa
  • 12-10-2018

Write an expression that shows how to use the halving and doubling strategy to find 28x50

Halving strategy means we divide by 2

Doubling strategy means we multiply by 2

We apply halving strategy for 28 and doubling strategy for 50

Half of 28 is 14

Double of 50 is 100

So 14 * 100 = 1400

Now we check with 28 * 50

28 x 50 = 1400

So required expression is

[tex]\frac{28}{2} * (50*2)[/tex]

Answer Link

Otras preguntas

Why does the Sun give off heat?
2 postulados y diagramas o esquemas para explicar los conceptos de la teoría cinético molecular​
Refusing to believe that the loss has occurred is called bargaining.a. Trueb. False
It is possible to draw a triangle with side lengths 8 ft, 9 ft and 20 ft.a. true b. false
El triple de un número disminuido en cuatro
(7.45 times 10^-12) divided by (2.12 times 10 ^-5) Give your answer in standard form to 3 significiant figures.
1 párrafo de reflexión sobre el capitulo 5 de antes de ser libres
Julie says, ''I added 3 odd numbers and my answer was 50.'' Explain y Julie cannot be correct.
Tycho brahe was a danish astronomer who confirmed copernicus’s theories by making many observations with his telescope. a. trueb. false
Question You have been hired as the Controller for the crayon department of Crayola Canada (CC). The Crayon Department in Canada will begin operations on Januar