Estimating Solutions Name: _______________________________ Directions: Read each problem below. Write the actual problem being solved and the estimated problem being solved. Solve the estimated problem. 1. Joanna and Laura have 164 stickers. They put them in 8 piles. About how many stickers did they put in each pile? 5. Miles played baseball 45 minutes one week, 32 minutes the second week, and 56 minutes the third week. About how many weeks did Miles practice in all three weeks? Actual Problem: _______________ Estimated Problem: _______________ Actual Problem: _______________ 2. It takes Manuel 22 minutes to walk to school each day. Approximately how many minutes does Manuel spend walking to school in 9 days? Estimated Problem: _______________ 6. One chicken at a restaurant serves 4 people. If the restaurant serves 38 people, approximately how many chickens do they need? Actual Problem: _______________ Estimated Problem: _______________ Actual Problem: _______________ 3. David sold 122 tickets to the play, and Spencer sold 231 tickets. What is a good estimate of the total number of tickets sold by both boys? Estimated Problem: _______________ 7. Ryan read 47 pages one night and 32 the next night. About how many more pages did he read the first night? Actual Problem: _______________ Estimated Problem: _______________ Actual Problem: _______________ Estimated Problem: _______________ 4. A dog kennel used 238 pounds of dog food one month. Approximately how many pounds did the kennel use in 3 months? 8. 679 went to the fair Friday, and 811 went to the fair Saturday. About how many more people went on Saturday? Actual Problem: _______________ Actual Problem: _______________ Estimated Problem: _______________ Estimated Problem: _______________

Name: _______________________________ Estimating Solutions Answer Key (Answers will vary some, depending on how students rounded.) Directions: Read each problem below. Write the actual problem being solved and the estimated problem being solved. Solve the estimated problem. 1. Joanna and Laura have 164 stickers. They put them in 8 piles. About how many stickers did they put in each pile? 5. Miles played baseball 45 minutes one week, 32 minutes the second week, and 56 minutes the third week. About how many weeks did Miles practice in all three weeks? Actual Problem: 164 ÷ 8 = Estimated Problem: 160 ÷ 8 = 20 Actual Problem: 45 + 32 + 56 = 2. It takes Manuel 22 minutes to walk to school each day. Approximately how many minutes does Manuel spend walking to school in 9 days? Estimated Problem: 50 + 30 + 60 = 140 6. One chicken at a restaurant serves 4 people. If the restaurant serves 38 people, approximately how many chickens do they need? Actual Problem: 22 x 9 = Estimated Problem: 20 x 10 = 200 Actual Problem: 38 ÷ 4 = 3. David sold 122 tickets to the play, and Spencer sold 231 tickets. What is a good estimate of the total number of tickets sold by both boys? Estimated Problem: 40 ÷ 4 = 10 7. Ryan read 47 pages one night and 32 the next night. About how many more pages did he read the first night? Actual Problem: 122 + 231 = Estimated Problem: 100 + 200 = 300 Actual Problem: 47 – 32 = Estimated Problem: 50 – 30 = 20 4. A dog kennel used 238 pounds of dog food one month. Approximately how many pounds did the kennel use in 3 months? 8. 679 went to the fair Friday, and 811 went to the fair Saturday. About how many more people went on Saturday? Actual Problem: 238 x 3 = Actual Problem: 811 – 679 = Estimated Problem: 200 x 3 = 600 Estimated Problem: 800 – 700 = 100