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Rounding Practice with AI Tutor Part Two - Grade 4
Rounding Practice with AI Tutor Part Two - Grade 4
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Question 1:

There are about 430 apples in each box. If there are 24 boxes in a truck, approximately how many apples does the truck carry? (round to the nearest thousand if your answer is greater than 1000)

Question 2:

A construction worker uses 3,600 bricks to build a wall. If each row of bricks includes 20 bricks, how many rows did the worker use? (round to the nearest thousand if your answer is greater than 1000)

Question 3:

A clothing store sold 20,326 t-shirts in a week. If the store opens 7 days a week, about how many t-shirts were sold each day? (round to the nearest thousand if your answer is greater than 1000)

Question 4:

A toy store sold 13,405 toys in a week. If the store opens 7 days a week, about how many toys were sold each day? (round to the nearest thousand if your answer is greater than 1000)

Question 5:

A grocery store sells 3,420 gallons of milk each week. About how many gallons of milk will they sell in a month? (round to the nearest thousand if your answer is greater than 1000)

Question 6:

During a traffic jam, there are approximately 3167 cars stuck in traffic, and 1124 of them are honking. Approximately how many cars are not honking? (round to the nearest thousand if your answer is greater than 1000)

Question 7:

At a music festival, 1,987 tickets were sold for the entire weekend. About how many tickets were sold each day? (round to the nearest thousand if your answer is greater than 1000)

Question 8:

4,382 people went to a fair. 2,154 of them were teenagers and about how many were adults? (round to the nearest thousand if your answer is greater than 1000)

Question 9:

The bakery made 4,567 cupcakes for a wedding. They sold 3,213 cupcakes during the wedding. Approximately how many cupcakes were left after the wedding? (round to the nearest thousand if your answer is greater than 1000)

Question 10:

In a hospital, there were 800 patients in the morning, 1,200 in the afternoon and 900 in the evening. Approximately how many patients were there in total? (round to the nearest thousand if your answer is greater than 1000)

Question 11:

A machine can complete 18 tasks per hour. Approximately how many tasks can the machine complete in 6 hours? (round to the nearest thousand if your answer is greater than 1000)

Question 12:

For dinner at the wedding, each guest ordered 3 fish fillets. If there are 150 guests, about how many fish fillets were ordered? (round to the nearest thousand if your answer is greater than 1000)

Question 13:

A store has 150 shirts that it wants to sell. If it sells 75 shirts each day, Approximately how many days will it take to sell all of the shirts? (round to the nearest thousand if your answer is greater than 1000)

Question 14:

A marathon runner completes a total distance of 26.2 miles. If he runs at a constant pace throughout the marathon, how many miles does he run per hour if he completes the marathon in 3 hours and 45 minutes? (round to the nearest thousand if your answer is greater than 1000)

Question 15:

At a grocery store, there are about 2038 items checked out by customers, and 751 of them are cans of soup. Approximately how many items are not cans of soup? (round to the nearest thousand if your answer is greater than 1000)

Question 16:

800 people attended a festival. 325 of them were men and about how many were women? (round to the nearest thousand if your answer is greater than 1000)

Question 17:

On a farm, there are 8,076 cows and 3,297 goats. There are about how many more cows than goats? (round to the nearest thousand if your answer is greater than 1000)

Question 18:

In a clothing store, 4,871 shirts were ordered. If 2,369 shirts were sold, how many shirts were left in stock? (round to the nearest thousand if your answer is greater than 1000)

Question 19:

The distance between two towns is 1800 km. It takes the car 12 hours to drive from one town to another. What is the speed of the car in km per hour? (round to the nearest thousand if your answer is greater than 1000)

Question 20:

For breakfast at camp, each cabin ordered 14 pancakes. If there are 30 cabins, the camp ordered about how many pancakes? (round to the nearest thousand if your answer is greater than 1000)


Answer Keys

Question 1: 10000

Question 2: 180

Question 3: 3000

Question 4: 2000

Question 5: 14000

Question 6: 2,000

Question 7: 663

Question 8: 2000

Question 9: 1354

Question 10: 3000

Question 11: 108

Question 12: 450

Question 13: 2

Question 14: 7

Question 15: 1,000

Question 16: 475

Question 17: 5000

Question 18: 2502

Question 19: 150

Question 20: 420


Solutions

Question 1
To find the total number of apples, we simply have to multiply the number of boxes by the number of apples in each box. So, 24 boxes x 430 apples/box = 10320 apples. Since we need to round to the nearest thousand, we look at the last three digits of the answer. The last three digits are '320', which is less than half of '1000', so we round down and get 10000 apples.

Question 2
To find the number of rows used, we divide the total number of bricks by the number of bricks per row: 3600/20 = 180. Therefore, the worker used 180 rows to build the wall.

Question 3
To find out how many t-shirts were sold each day, we need to divide the total number of t-shirts sold in a week by the number of days the store is open. So, 20,326 ÷ 7 = 2903.714. To round this to the nearest thousand, we look at the hundreds digit (4) and round up if it is 5 or more, and round down if it is less than 5. In this case, since 4 is less than 5, we round down to get 2900. Therefore, the store sold about 2900 t-shirts each day.

Question 4
To find the number of toys sold each day, we divide the total number of toys sold by the number of days the store is open. 13,405 / 7 = 1,915 We need to round this number to the nearest thousand since the question asks us to do so. Rounding 1,915 to the nearest thousand, we get: 2,000 toys sold each day. Therefore, the answer is 2000.

Question 5
To find out the number of gallons of milk sold in a month, we need to multiply the weekly sales by 4 (as there are approximately 4 weeks in a month). So, 3,420 x 4 = 13,680. Since we need to round the answer to the nearest thousand, we get 14,000.

Question 6
To find the number of cars not honking, we need to subtract the number of honking cars from the total number of cars stuck in traffic. Therefore, the solution is: 3167 - 1124 = 2043. Rounding this to the nearest thousand gives us 2,000, which is the answer provided.

Question 7
To find the tickets sold per day, we need to divide the total tickets sold by the number of days they were sold. Since the music festival is for an entire weekend, we assume it to be for two days. So, 1,987 ÷ 2 = 993.5. The question suggests to round to the nearest thousand if the answer is greater than 1000, and in this case it is. Therefore, we round 993.5 to 1,000. Thus, tickets sold per day can be approximated to 1,000, which is different from the given answer. Hence, we cannot include this solution in the returned json array.

Question 8
To find the approximate number of adults, we can subtract the number of teenagers from the total number of people and round to the nearest thousand. 4382 - 2154 = 2228. Rounded to the nearest thousand, the approximate number of adults is 2000.

Question 9
To find the number of cupcakes left after the wedding, we need to subtract the number of cupcakes sold from the total number of cupcakes made. 4,567 - 3,213 = 1,354. Therefore, approximately 1,354 cupcakes were left after the wedding.

Question 10
To find the total number of patients in the hospital, we simply add up the number of patients in each time period. Total patients = 800 + 1,200 + 900 = 2,900 Rounding to the nearest thousand, we get approximately 3,000 patients.

Question 11
To find out how many tasks the machine can complete in 6 hours, we need to multiply the number of tasks it can complete in one hour (18) by the number of hours (6). This gives us 18 x 6 = 108. Therefore, the machine can complete approximately 108 tasks in 6 hours.

Question 12
To find the total number of fish fillets, we multiply the number ordered by the number of guests. 3 x 150 = 450. Therefore, about 450 fish fillets were ordered.

Question 13
150/75 = 2

Question 14
To find the speed of the marathon runner in miles per hour, first convert the time to hours. 3 hours and 45 minutes is equivalent to 3.75 hours. Then, divide the total distance (26.2 miles) by the time in hours (3.75 hours): 26.2/3.75 = 6.98667. Since we need to round to the nearest thousand if the answer is greater than 1000, we round up to 7.

Question 15
To find the approximate number of items that are not cans of soup, we can subtract the number of cans of soup from the total number of items. This gives us: 2038 - 751 = 1287. Rounding this to the nearest thousand, we get 1,000. Therefore, the approximate number of items that are not cans of soup is 1,000.

Question 16
To find the approximate number of women, subtract the number of men from the total number of people. 800 - 325 = 475. Therefore, about 475 people were women.

Question 17
To find how many more cows than goats there are, we simply subtract the number of goats from the number of cows. 8,076 - 3,297 = 4,779. Rounding this to the nearest thousand gives us an answer of 5,000.

Question 18
To find the number of shirts left in stock, we need to subtract the number of shirts sold from the number of shirts ordered. So, 4,871 - 2,369 = 2,502. As instructed, we round this answer to the nearest thousand since it is greater than 1000. The answer is therefore 2,500, which is closest to 2,502.

Question 19
To find the speed of the car, we need to divide the distance travelled (1800 km) by the time it took to travel (12 hours). This gives us a speed of 150 km per hour. Since our answer is already rounded to the nearest whole number, we do not need to round it any further. Therefore, our final answer is 150 km/h.

Question 20
To find the total number of pancakes, we multiply the number ordered by the number of cabins. 14 x 30 = 420. Therefore, the camp ordered 420 pancakes.