Maths practice for 12-year-olds - page 152 of 352
Number of problems found: 7030
- Applicant success
Of the 4,500 applicants, 2/9 were successful in the university entrance exams. How many applicants were successful? - Cyclist route
On the first day, cyclists walked 2/5 of the way, which is 4/35 km. How many kilometers do they have to travel the next day to complete the entire route? - Size comparing
A store sells olive oil in three different sizes. Which size is the best buy, and what is its unit price? Size Price 17 oz $ 8.69 25 oz $11.79 101 oz $46.99 - Two dice
We roll two dice. What is the probability that the sum of the falling numbers is greater than 3? - Garden digging
Pavel dug in the morning, 1/5 of the garden in the afternoon, and then 1/2 of the unoccupied part. What part of the garden remained unopened? - Fraction number
Fractions: 14/17. 34/56 + 6/9 + 10/13 : 5/26 = 10/16 - ¼ + 15/18 : 5/9 = ¾. (25/42 - 3/7) +16/21 : 4/7 = 2. Whole numbers: (-12) + (-6). (-2) - (-14) : 2 = 35 : (-5) + (-12) . 2 + (-6) = 42 : (-3) . (-5) - (-12)+ (-16) = - Washing machine loan
Thomas took out a loan to buy a washing machine. In the following 12 months, according to the contract, he had to repay the amount of 150 euros. The price of the washing machine is 1200 euros. What percentage is the annual interest rate? Write in the form - Inflation and deposits
A client deposits 100,000 euros in XYZ bank for a term deposit with an interest rate of 4% pa (per annum). After six months, you went to get the money. How much did he have in his account with the described half-yearly interest? PS When you deposit money - Bank loan
Susan borrowed a certain amount from the bank, with the proviso that she would return 15,000 euros a year. The annual interest rate was set at 4.5%. How much did Susan borrow? - Cleaning 2
Maggie is looking to hire a carpet cleaning company. Cleaning Crew Inc. charges $24 for supplies and then $18 per room. If Maggie has $96 to spend on cleaning the carpets, how many rooms can she have cleaned? - Number equation puzzle
One-fifth of twice the number t is one. - The Bakery
At a Bakery, ⅗ of the baked goods are pies, and the rest are cakes. ⅓ of the pies are coconut. ⅙ of the cakes are angel food. What fraction of all the baked goods at the Bakery are coconut pies? What fraction of all the baked goods at the Bakery are angel - Marvin
Marvin buys a hose that is 27 ¾ feet long. He already owns a hose at home that is ⅔ the length of the new hose. How many total yards of the hose does Marvin have now? - Cake part remaining
We divide the cake into 11 equal parts and eat 2 of them. Then we divide each part of the cake that is left into two more parts and eat another 2 of them. Which part of the cake did we not eat? - Ribbon purchase
To decorate for the party, they needed 3 red ribbons, each 1/4 meter long, 5 white ribbons, each 5/8 meter long, and 4 blue ribbons, each 2/5 meter long. How many meters of ribbon did they buy altogether? (express as a decimal number) How much did they pa - Number fraction 7/10 from number K is 28 What is the number K =?
- The kennel
20 dogs. The ratio of dogs to cats is 3:2 . How many cats? - Family age
Kubo is 14 years old and has a one-year-old sister, Nina, and a four-year-old brother, Sam. In how many years will Nina and Sam be as old as Kubo? - Pilgrimage spending Paul spent CZK 315 on a pilgrimage over three days, doubling his spending each day. How much did he spend on the first day?
- Sphere surface
The volume of the sphere is 803.84 m³. Calculate its surface.
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