tlee2242
tlee2242 tlee2242
  • 05-05-2016
  • Mathematics
contestada

describe the mental math steps you would use to find 7 (42)

Respuesta :

Brooklynnc
Brooklynnc Brooklynnc
  • 05-05-2016
Break 42 into 40 + 2. Multiply 40 x 7=280 and 2 x 7=14. Then add 280 + 14 = 294.
Answer Link
LovePuppies7865 LovePuppies7865
  • 05-05-2016
If you want to do step by step, you should start by breaking 42 into 40 and 2.
Then you multiply 7 by both 40 and 2. 7 times 40 is 280. 7 times 2 is 14. You could then add the two products and you get 294.
Or you could simply multiply 7 times 42.
Answer Link

Otras preguntas

Please make my life easy and do this
The cytoplasm of animal cells has a concentration of potassium ions (k ) as much as 20 times higher than the concentration outside the cell. how do cells move p
¿En qué ciudad (city) está la biblioteca? ¿Cómo se llama la bibliotecaria/ el bibliotecario (librarian)? ¿Cuántas horas trabaja ella o él? ¿Qué hacen la
Help Which expression is the completely factored form of 27x^3+y^6? In parenthesis form
How do you use a double prime symbol?
What is the x-intercept and the y-intercept for x+2y=8
Which of the following would best help you choose a toothpaste? A. Visit dental association sites. B. Read online blogs. C. Visit product websites.
convert 1,920,000,000 minutes into hours
Regular physical exercise lowers blood pressure. Select one: a. True b. False
a spool of ribbon holds 6.75 meters a craft club buys 21 spools if the club uses 76.54 meters to complete a project how much ribbon will be left