# 6th Grade - Give Accurate Answers

 Grade Level: 6th Skill: Problem Solving Topic: Give Accurate Answers Goal: Indicate the relative advantages of exact and approximate solutions to problems and give answers to a specified degree of accuracy. Skill Description: Identify the advantages of exact answers and estimates, or approximate solutions to problems. Evaluate problems to determine if an estimate or exact answer is needed.

## Building Blocks/Prerequisites

### Sample Problems

 (1) Randy’s family went to the movies. They bought two adult tickets for \$8.50 and three children’s tickets for \$5.75. What is the least amount of money they need to pay for the tickets? Indicate whether you need an estimate or exact answer, then solve. (Exact; \$34.25) (2) Indya is making a cake. She needs 2 ½ cups of sugar for the cake batter and ¾ cup of sugar for the frosting. How much sugar does she need in all? Indicate whether you need an estimate or exact answer, then solve. (Exact; 3 ¼) (3) The librarian has 329 books that she’d like to divide amongst the 3 sixth grade classrooms. How many books should she give each classroom? Indicate whether you need an estimate or exact answer, then solve. (Estimate; She won’t be able to divide the books evenly, so she will give each class 109 or 110.) (4) It is 10 a.m., Amanda is driving at an average rate of 65 mph. She has to drive 100 miles to get to her destination. At about what time can she expect to arrive at her destination? (Estimate; about 11:30 a.m.) (5) A bus holds 50 students. How many busses are needed to transport 116 students. ? Indicate whether you need an estimate or exact answer, then solve and explain. (Exact or overestimate; there must be at least 3 buses. If an underestimate is made, there will be 16 students that won’t fit on the bus.)

### Online Resources

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