Estimation Nation
Where Richard lives, the average high temperature in March is 53.7 degrees. The average low temperature is 42.1 degrees. Which equation best estimates the difference between the average high and low temperatures in March?
A. 54 - 42 = 12
B. 53 - 43 = 10
C. 53 - 42 = 11
D. 54 - 43 = 11
A
Estimate to find the sum
13.98 + 4.11 = ?
18
Estimate to find the difference.
34.53 - 12.90 = ?
22
A new crayon is 14.82 centimeters long. A crayon that Rhonda has been using is now 5.73 centimeters long. About how much longer is the new crayon.
About 9 centimeters