stasia02
stasia02
23-09-2016
Mathematics
contestada
Estimate then find the difference or sum
86+17
Respuesta :
Аноним
Аноним
23-09-2016
Estimation for addition: 8
6
rounds up to 90 and 1
7
rounds up to 20 so:
90 + 20 = 110
Estimation for subtraction is the same thing but with subtraction
90 - 20 = 70
Now for the exact answers:
86 + 17 = 103
86 - 17 = 69
Your answers are
110, 70, 103, and 69.
Answer Link
VER TODAS LAS RESPUESTAS ( 77+ )
Otras preguntas
What is the sum of an infinite geometric series if a1 = 144 and r = 1⁄4? A.288 B. 576 C. 252 D. 192 HELP QUICK PLEASSEE
A front forms when _____ .
Which matrix shows the change in enrollment from 2008 to 2009?
After the Civil War, thousands of African-Americans migrated west in search of work as cowboys. In addition to the availability of steady work, what drew many o
can someone give me 3 reasons why should students take a gap after high school? Please and thank you
Which angle in this shape is a right angle angle a angle c angle b angle d
Factors such as literacy rate, average family income, infant mortality rate, and life expectancy are used most often to measure __________. A. development B. ha
Please tell me how to figure this out
A. Approves constitutional amendments B. Declares executive orders legal C. Proposes treaties D. Overrides vetoes
a sphere has a surface area of 36m ^2. if the radius of the sphere is doubled, what will be the new surface area of the sphere?
