task 1
1 Seashells are skeletons of a class of mollusks.
2 They have their skeletons outside.
3 Crabs used shells for homes.
4 They use shells,to create jewelery,decorate their houses and clothes.
5 some of them use it as containers for food and water.
task 2
1 cheaper
2 faster
3 bigger
4 smart
task 3
1. on the right
2.above
3.between
task 4
1.420+60= fourty hundred eighty
2.100+28= one hundred twenty eight
3.201+500= seven hundred one
task 1
1 Seashells are skeletons of a class of mollusks.
2 They have their skeletons outside.
3 Crabs used shells for homes.
4 They use shells,to create jewelery,decorate their houses and clothes.
5 some of them use it as containers for food and water.
task 2
1 cheaper
2 faster
3 bigger
4 smart
task 3
1. on the right
2.above
3.between
task 4
1.420+60= fourty hundred eighty
2.100+28= one hundred twenty eight
3.201+500= seven hundred one