Maths practice for 13 year olds
Number of problems found: 249
- An airplane 2
An airplane left Changi International Airport at 9 p.m. and fly 5841 km to Dubai International Airport. If the airplane flies at an average speed of 649 km/h, what is the arrival time of the plane? A) 6 a.m. the same day B) 8 a.m. the same day C) 6 a.m. t
- Quarter of unknown number
If we subtract a quarter of a number from the number 12, we get the number -5. What's that number?
- Today 2
Today only, a desk is being sold at a 72% discount. The sale price is $100.80. What was the price yesterday?
- On Tuesday 2
On Tuesday, the temperature at 9 AM at Camden's house was -4°Fahrenheit. By 4 PM, the temperature at his house was 8°Fahrenheit. Which statement about the change in temperature from 9 AM to 4 PM at Camden's house is true? House is true? A. The temperature
- The temperature 29
The temperature at 6 P.M is -11°Fahrenheit. During the night, the temperature rises 7°F, drops 3°F, and rises 5°F. What is the temperature after these changes
- Delta t
The temperature decreased 14°F between 10 p.m. and 4 a.m. The temperature at 4 a.m. was 67°F. What was the temperature at 10 p.m.?
- Yesterday 5
Yesterday, between noon and midnight, the temperature went down by 32.1°F. If the temperature was -6.6°F at midnight, what was it at noon?
- Knitting a scarf
Rebecca is knitting a scarf. She runs out of yarn when the scarf is 1 1/2 feet long, which is ⅔ of the length she wants to make. How long is the scarf when finished? Write a multiplication and a division equation to represent this situation.
- Cost price
Mrs Ifeola bought 10 baskets of carrots. By selling it for ; 450.00 per basket, she lost a total of ; 360.00. what was the cost price for the 10 baskets?
- Saving at market shop
Mr. Akpalu went to a market to purchase 3 kg of sugar, 10 kg of wheat and 1 kg of salt. In a shop near to Mr. Akpalu's residence, these commodities are priced at € 20, €10 and € 6 per kg whereas in the local market these commodities are priced at € 15, 8
- Sqrt of 24
What is the square root of 24?
- Two teacher
Two teacher are paid 3,000 pesos. if the teachers are to share this amount in the ratio 3:5 how much does each receive ?
- Madam 2
Madam Lowa bought 4 cakes and 4 puffs for $16. Each cake cost $0.50 more than each puff. How much did 1 puff cost?
- Average spending
If rina's cell phone bills for the past five months have been $91, $69, $74, $56, and $70, what was her average cell phone bill for the past 5 months?
- Mis Harding
Mis Harding is going to change her tiles and the yards are 2 1/2 yard times 2 1/2 yard on the side. What is her area A 6 1/4 B 4 1/2 C 8 1/2 D 5 1/4
- Tickets 11
There are 72 tickets to be shared and divided to Section X and Section Y in the ratio 4:5. How many tickets will Section Y receive?
- Collection 70394
We mixed two types of candies into the collection. The first species for 36 CZK per 1 kg, the second species for 54 CZK per 1 kg. What was the price of one kg of a mixture?
- 13680m2 70374
Eight painters painted an area of 15200 m ^ 2 in 5 days. How many painters will paint an area of 13680m² in 3 days?
- A cyclist
A cyclist rides for 30 minutes on a style road to the top of a mountain. Of down there, the road goes downhill. Its uphill speed is 20km/h and 60km/h downhill. The distance from the summit of the mountain to its destination is 30 km. Calculate the average
- Huddersfield 70164
Prague's direct distance to Huddersfield (United Kingdom) is 1680km. What is the map's scale, at which this distance is 84 cm?