add and subtract decimals
11.39+14.27
25.66
The pyramid of Khafre measured 14.35 meters high The pyramid of Menkaure measured 65.5 meters high.What was the difference in the heights of these two pyramids?
65.5-14.35 =?
51.15
A dollhouse has 15.15 square feet downstairs and 6.25 square feet upstairs. Which of the following is a reasonable estimate of the total square footage in the dollhouse ?
15.15+6.25= ?
Reasonable Estimate - 21 square feet
0.82+4.21
5.03
A frog jumped 0.34 meter,0.68 meter and 0.51 meter in three jumps. How far did it jump in all?
0.34+0.68+0.51 =?
1.53 meters
Beth worked 33.25 hours last week and 23.75 hours this week. How many total hours did she work ?
33.25+23.75=?
Reasonable Estimate - 57 hours
9.10+7.21
16.31
Damaris had $20. She bought some post cards for $5.97. How much money did she have left ?
20.00-5.97 =?
14.03
16.82-5.21
11.61
In a long jump competition, Khaila jumped 3.9 meters. Alicia jumped 3.08 meters. How much farther did Khaila jump ?
3.90-3.08 =?
0.82 meter
7.21-6.10
1.11