Maths practice for 12-year-olds - page 113 of 351
Number of problems found: 7018
- The tailor
The tailor estimated the rest of the fabric in the package at 11 m. By measuring, he found that he could cut the same pieces of this fabric without a residue in 150 cm or 210 cm increments. How many meters of fabric were in the package? - Tandem jump
During the tandem jump, the paratroopers dropped from a height of 1.7 km to a height of 1.5 km above the surface in 4 seconds. At what average speed did they move before the parachute opened? - Earnings 2
Trina's paycheck earnings vary directly from the number of hours she works. If she works 19 hours and earns 187.15 pesos, what should she earn if she works 40 hours? - Treasure map
On a treasure map, the actual distance is directly related to the scaled distance. If 15 miles is represented by 3 centimeters on the treasure map, are they equivalent to 135 miles? - Cherries 58331
There were 60 cherries in the bowl. Honza ate 3/12, Martin 7/20 and Zuzka 3/10. How many cherries are left in the bowl? - Nicola 2
Nicola is playing a video game where each round lasts 7/12 an hour. She has scheduled 3 3/4 hours to play the game. How many rounds can Nicole play? - Collected 58291
Veronika collected 3/5 kg of paper, Alex collected 3/4 kg of paper, and Juraj collected 7/10 kilograms of paper. a) who collected the most and who collected the least? b) how many kg of paper did they collect together? (cut the result in the form of a mix - Kilometer 58281
Write a fraction, which part: 1) kilometer is 31 m 2) minutes is 42 seconds 3) the day is 10 o'clock - Pencils 2
Eli is selling pencils. She sold 3/5 of them in the morning and 1/4 of the remainder in the afternoon. If Eli sold 200 more pencils than in the afternoon, how many pencils did Eli have in the beginning? - One-quarter 58211 The friends shared CZK 2,000. Felix got two-fifths, John two-tenths, Paul one-quarter. How many crowns did Tom get?
- Center-symmetric 58201
Find out which we can write letters (uppercase) as center-symmetric. - Divide in ratio
What is 75 in the ratio of 2:3? - Antipandemic garlic
Noah bought 0.328 kg of garlic, 0.072 kg of tomatoes, 0.1112 kg of onions, and the remaining kg of ginger to make it 2.387 kilograms altogether. How many kg of ginger had he bought? - Sets
If X = {1, 2, 3, 4, 5 . . .10}, Y = {2, 4, 6,. . . 20} and Z = {x: x is an integer, 15 ≤ x ≤ 25 }. Find (a) X ∩ Y, (b) X ∩ Z, (c) n(X ∪ Y), and (d) n(X ∪ Z) - Eq1
When the product of two less than three times a number and four is subtracted from nine times the number, the result is eight more than five times the number. What is the number? - Ethan
Ethan is a farmer. He spends 50 hours each week working on the farm. In the summer, Ethan spends 4/11 of his time cleaning and 2/9 of his time feeding the animals. How many hours does he spend feeding the animals every week? Fill sentence: Ethan spends __ - Antonio
Antonio is thinking of an improper fraction and a mixed fraction with a sum of 5 5/12. The improper fraction is 8/3. What is the mixed number? - All needs
All need a mean score of 92 or higher on four texts to get an A. So his scores are 94. 90. and 84 What score on the fourth test will get him an A? - Power consumption
The price of electricity is ₱6.50 per kilowatt hour (kWh). How much electricity was consumed if a television with 120 W power consumption ran from 7:30 AM to 12:30 PM? How much will this cost? - There 19
There are 19 boys in section A and 23 boys in section B. If 4/7 of them are boy Scouts, how many boy scouts are there?
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