Question 1: Estimate the total cost of buying 15 apples at approximately $1.20 each. Show your calculation.

Answer: Approximately $18

Question 2: A car travels approximately 380 kilometers in 5 hours. Estimate its average speed in km/h.

Answer: Approximately 76 km/h

Question 3: Round 567 to the nearest hundred and estimate the sum of 567 + 432 using these rounded numbers.

Answer: 1100

Question 4: Estimate the number of students in a school if each class has about 28 students and there are roughly 12 classes.

Answer: Approximately 336 students

Question 1: A grocery store sells 48 cartons of eggs. Each carton contains about 12 eggs. Estimate the total number of eggs in all the cartons.

Answer: Approximately 576 eggs

Question 2: A delivery truck is approximately 2.4 meters wide and 4.8 meters long. Estimate its area in square meters.

Answer: Approximately 11.5 m²

Question 3: A factory produces around 1,250 units of a product each week. Estimate the total units produced in a month (about 4 weeks).

Answer: Approximately 5000 units

Question 4: A box contains approximately 350 candies. If you pack candies into small bags of about 15 candies each, estimate how many bags you can fill.

Answer: Approximately 23 bags

Question 5: Estimate the total weight if a bag of rice weighs about 5 kg and there are roughly 25 such bags.

Answer: Approximately 125 kg

Question 1: A sports stadium has approximately 45,000 seats. If each row contains about 30 seats, estimate how many rows there are in the stadium. Explain your reasoning.

Answer: Approximately 1500 rows

Question 2: A farmer harvests about 2,500 apples a day during the peak season. If the season lasts approximately 60 days, estimate the total harvest. Show your working.

Answer: Approximately 150,000 apples

Question 3: A baker makes around 120 cookies per hour. If they work for about 8 hours a day, estimate the total number of cookies baked in a week (7 days). Explain your steps.

Answer: Approximately 6,720 cookies

Question 1: Estimate the total length of all the roads in a small town if there are about 25 streets, each approximately 3.2 kilometers long. Show your working.

Answer: Approximately 80 km

Question 2: A factory produces about 380 units of a product daily. Estimate the total production in a year assuming 365 days. Explain your reasoning.

Answer: Approximately 138,700 units

Question 1: Estimate the number of pages in a book if each page has about 250 words and the book contains roughly 100,000 words. Show your working.

Answer: Approximately 400 pages

Question 2: Plot the graph of y=2x for x values from 0 to 10 on the grid.

Answer: Student draws the line y=2x

Question 3: Construct a triangle with sides approximately 6 cm, 8 cm, and 10 cm. Use the grid for drawing.

Answer: Student draws the triangle accordingly

Question 1: A student estimates the total cost of 8 items priced at $4.99 each by calculating 8 x $5 = $40. Identify the mistake and provide the correct estimation.

Answer: The mistake is rounding $4.99 to $5. The correct estimate is approximately 8 x $5 = $40, which is acceptable, but more precise estimate would be 8 x $4.99 ≈ $39.92.