Total 9 Questions (Please login to see all questions)

1. A group of loggers cut down 15 trees and plant 30 new ones. How many more trees did they plant than they cut down?
2. The tallest tree in the world is a giant redwood called Hyperion. Hyperion is about 380 feet tall. If the Great Pyramid of Giza is 480 feet tall, how much taller is the Great Pyramid than Hyperion?
3. 6 birds perch in a tree to rest in the shade. 4 more join them. How many birds are in the tree?