Maths practice for 12-year-olds - page 122 of 347
Number of problems found: 6932
- Lcm = 22 + gcd
The least common multiple of two numbers is 22 more than their greatest common divisor. Find these numbers. - Sir Toffie
One hot afternoon, Sir Toffie went to his backyard to plant monggo. He discovered that they accidentally mixed different seeds like monggo, pechay, eggplant, and tomatoes in his seed box because of the strong wind. He sieved the mixed seeds and got 4 ¾ sc - Jose studied
Jose studied for 4 and 1/2 hours on Saturday and another 6 and 1/4 hours on Sunday. He has allowed 1 and 1/2 hours per subject on Saturday and 1 and 1/4 hours per Sunday. How many subjects did he study? - Most divisors
Find the number with the most divisors from the natural numbers 1 to 100. - Cherry basket division
There are cherries in a basket. If we can divide them equally among three, four, or five children, how many cherries are there at minimum? - Drawing scale length
The technical drawing shows the product on a 5:2 scale. Determine the length of the product if it measures 12 cm in the picture. - Estimate
Estimate the answer by rounding each fraction to the nearest whole number and then subtracting. 9/15 - 2 7/8 - Peter 2
Peter wanted to have 120 kilograms of fruit. He picked up ten bags. Each bag contains 9 1/2 kilograms. How many more kilograms does he need? - I-beam
If an I-beam is 12'- 6 1/2" long and needs to be cut into four equal sections, how long will each section be? - The car
The car consumes 5 liters per 100 km and has 24 liters of gasoline in the tank. How much petrol remains in the tank after it rides for two and a half hours at a speed of 80 km/h? - The temp range
What is the range in temperatures if the high temperature is 67 degrees Celsius and the low temperature is -25 degrees Celsius? - Rachel
Rachel fills 9/10 of a bucket with water and 3/5 of another bucket of the same size. How much water does she have in total? - Letter equality puzzle
Add the same numbers after the same letters and different numbers after the other letters so that equality applies: KRAVA + KRAVA = MLIEKO, where K is an odd digit. - Central Park
Central Park is a rectangular park in New York City, and the map scale is 1 cm: 320 m (It means 1 cm on the map represents 320 m in the real world. ). Find the north-south distance if the length on the map is 2.5 cm. - Martina
Martina is solving the equation 4x - 11 = 2x + 391. Here are the first steps of her solution. 4x - 11 = 2x + 391 2x - 11 = 391 2x = 402 What did Martina do to get 2x - 11 = 391? - Bamboo 2
A piece of bamboo is 2 1/4 meters long. Jessie cuts 1 1/3 meters to be used for making some kites and another piece 3/4 meters long to be given to his friend. How long is the remaining piece of bamboo? - Marshall
Marshall earns a salary of 36,000 each year and receives a $4000 raise. Jim has a salary of 51,000 yearly, receiving 1500 bonuses. How many years will it take before Marshall and Jim are on the same salary? - Three 109 Three scouts brought three pieces of rope of lengths five and three-fourth meters, six and two-thirds meters, and five and five eight meters to their camps. How long are the three pieces together?
- Pizza cover
5/8 of the pizza is covered in mushrooms, 1/4 is covered with pineapples, and the rest is covered with only cheese. What fraction of the pizza is covered with only cheese? - The space museum
The science club is going to the space museum. The club consists of 27 students. If admission costs $6.50 for children ages 4–11 and $8.50 for children ages 12–17, how much will it cost for the entire science club's admission to the museum? Science Club S
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