Process
1. Shrek has invited many of his fairytale friends. He invites about the same number of each type of fairytale friends to make it fair. He wants to estimate how many friends will be there all together. Using this website http://www.teachers.ash.org.au/jeather/maths/dictionary.html determine the meaning of clustering estimation and then help Shrek to estimate his about of friends invited. Shrek invited 124 fairies, 128 dragons, 121 royals, 125 townspeople, and 127 other characters.
2. Shrek now needs to decide how much swamp stew he will need to feed all of his guest. For his soup he will need 125 carrots, 244 potatoes, 94 onions, 81 eggplants, and 77 cabbages. Using this website http://www.icoachmath.com/SiteMap/CompatibleNumber.html about what compatible numbers are. Use compatible number estimation to determine how many vegetables will he need all together for his stew?
3. Shrek will also need to use rounding estimation to determine how much money his supplies will cost for his party. He will need 625 bowls costing him $49, 625 spoons costing him $17, 625 napkins costing him $6, 625 cups costing him $75. Using this website www.321know.com/est27ax2.htm to help round to the nearest ten to find how much Shrek’s supplies will cost.
4. Fiona wants to make sure the swamp is clean for the big party she wants to use front-end estimation to determine how long it will take her to clean the whole swamp. She know it will take her 62 minutes to clean the living room, 83 minutes to clean the kitchen, 24 minutes to clean the bathroom, 35 minutes to clean the bedroom, and 97 minutes to clean the outside. Using this website www.321know.com/est73ax2.htm determine how long it will take her to clean the swamp using front-end estimation.