Maths practice for 12-year-olds - page 117 of 360
Number of problems found: 7199
- Nicolas
Nicolas and his father can repair one desk in 1/3 hour. How many desks can they repair in 3 hours?
- Vegetables
Covina gathered 6 4/5 kg of string beans, 3 ¼ kg of radish, and 9 5/8 kg of tomatoes. How many kg of vegetables did she gather in all?
- The expression
What is the value of the expression ((6²+60))/(23)
- A sum
A sum of money is shared between Peter, John, and Henry in the ratio 2:3:5. a) express Henry's share as a fraction of John's share. b) what fraction of the whole sum of money is John's share?
- Sort fractions
Which of the following fractions is the largest? 29/36 5/6 7/9 3/4
- Calculate 55981
Calculate the following example: On a map with a scale of 1:50,000, two places, A and B, are 4 cm apart. Find out: a) what is the distance between these places in reality; b) what is the scale of the map in which these places are 12 cm apart?
- Benhur
Benhur boiled 1 1/4 liters of water in a kettle. After 10 1/2 minutes, he measured the water again. It had 3/4 liters left in the kettle. What is the amount of water that evaporates every minute?
- 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.
- Cherries 55831
There are cherries in the basket. If we can divide them equally between three, four, or five children, how many will there be?
- Technical 55751
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 fruits. He picked up ten bags. Each bag contains 9 1/2 kilograms. How many kilograms does he need more?
- 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?
- Different 55491
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.
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