txladybugg txladybugg
  • 15-09-2016
  • Mathematics
contestada

explain how you would estimate to subtract 189 from 643

Respuesta :

hovanbrittany
hovanbrittany hovanbrittany
  • 15-09-2016
To estimate an answer to this problem, you must first estimate the numbers as well. 189 would round to 190, and 643 would round to 640. Now you would subtract 190 from 640, giving you 460. 
Answer Link
Аноним Аноним
  • 15-09-2016
you first round both numbers when estimating. the 189 would round to 200 and the 643 would round to 600. then you just simply subtract them both which is 400.
Answer Link

Otras preguntas

True/false: a security plan should be flexible
Please help me answer. Thanks in advance.
4x+4ab=5x-6ab solve for x
The lines are perpendicular, find the slope-intercept form of the equation of line y₂
For her tutoring services, Thuy charged Demi $10 per hour and $8 for books and supplies. Demi paid a total of $48.00. Which equation represents this situation?
The Atlas Mountains are found in which of the following countries?
What's 5/12 as a decimal
The product of 2 times 10 raised to the fourth power and 4 times 10 to the negative 12 power in scientific notation
What is a treaty? an informal agreement between two or more nations a formal agreement between two heads of state an informal agreement between two heads of sta
mitochondria are responsible for dna maintenance storage making protein providing energy for the cell