Rounding - practice for 13 year olds - page 2 of 7
Number of problems found: 138
- Portioning ice cream
How many scoops of ice cream can we make using a scoop in the shape of a spherical canopy with a radius of 2.5 cm and a height of 4 cm. We have a 2-liter ice cream tub available. When portioning, we will follow the exact measure. - Right-angled 81359
The paths in the park form a right-angled triangle, which on the map with a scale of 1:200 has two dimensions of side lengths of 9cm and 15cm. Grandma walks this route every day for a health walk. How many meters does she walk? - Wire cut 2
We can cut a length of wire into five pieces, each 24 cm long. How many pieces, each 15 cm long, can be cut from the wire? - Ron has
Ron has 4 2/3 liters of oil. He kept 1 1/4 liters and divided the rest into parts of 3/4 liter each. How many parts did he make?
- Felix
Calculate how much land Felix Baumgartner saw after jumping from 36 km above the ground. The radius of the Earth is R = 6378 km. - A hairstylist
A hairstylist schedules 1/4 hour to trim a customer's hair and 1/6 hour to style the customer's hair. The hairstylist plans to work 2 1/3 hours daily for five days weekly. How many appointments can the hairstylist schedule weekly if each customer must be - Divisible 72004
Find the natural number between the numbers 70 and 80 divisible without the remainder 5, 3, 15, and 25. - Completely 67674
A) Can the maximum number of sugar cubes with a volume of 3375 cubic mm fit in a new cube-shaped sugar bowl with internal dimensions of 12 cm, 6 cm, and 3 cm? B) Mom poured sugar cubes into the new sugar bowl, filling it completely. She estimated that the - 15-kilogram 66524
The lift has a load capacity of 250 kg. How many 15-kilogram boxes can be taken by a person weighing 80 kg maximally?
- Calculate 65154
Each square of the net has an area of 25 mm². Calculate the area of the DEF triangle in cm². Express the result as a decimal number to three decimal places. - Percentages 64334
In the first delivery of 120 parts, there was 5% waste. In the second delivery in which, 10% of the 80 were scrapped. How much scrap was brought in with the first and second deliveries combined? What % of scrap was there in both deliveries of parts, out o - Market open
A certain market opens for sales every 7th day of the week. If it opened last on a Friday, what day of the week will the market be opened again after nine months? (Hint: a month is 30 days) - Highway
A stretch of highway 12 1/4 kilometers long has speed limit signs every 7/8 of a kilometer. How many speed limit signs are on this stretch of highway? - Sqrt between ints
Which two consecutive integers does the square root lie in? * √45 √23 √71 √7 √86
- Semicircle
The ornament consists of one square and four dark semicircles. The area of the square is 4 cm². Find the area of one dark semicircle and round the result to hundreds. - A diesel car
A diesel car costs $2599 more than an unleaded petrol car and travels an average of 25,000km per year. Diesel petrol has a consumption rate of 7.4L per 100km and costs $1.39 per liter. Unleaded gasoline has a consumption rate of 8.5L per 100km and costs $ - Cost structure
You are currently trying to decide between two cost structures for your business: one with a greater proportion of short-term fixed costs and another more heavily weighted to variable costs. Estimated revenue and cost data for each alternative are as foll - Language test
Your language test scores are 58, 68, 89, and 95. What is the lowest you can earn on the next test and still achieve an average of at least 79? - Percentages 8
What percent (%) is the amount of 12 from a base of 69? Round the final result into two decimals.
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