Maths practice for 12-year-olds - page 26 of 347
Number of problems found: 6923
- Which 15
Which two digits need to be interchanged to make the following equation correct? 16+7*2+4-3=12 A) 2 and 4 B) 7 and 4 C) 16 and 2 D) 7 and 3 - Time vs pizza
If Mr. Cromleigh can eat 1/4 of a pizza in 1/6 of an hour, how many pizzas can he eat in one hour? He can eat ____ pizzas. - Sonya
Sonya, Jill, and Donna run each Monday. Jill ran 6/12 of an hour, and Donna ran 5/12 of an hour. If the girls ran a total of one whole hour, what fraction of an hour did Sonya run? - LCMs What is the difference between the LCM (16, 400) and LCM (15, 65)?
- Jalissa's
Jalissa's mom purchased coffee from the local coffee shop. The first cup of coffee was $4.25. Each refill is $2.25. She also decided to get a bagel for $3.15. If Jalissa's mom had 2 refills and a $0.50 discount as part of the rewards program, how much did - Work
2/5 of the employees in a company drive to work, 1/3 travel by bus, and the rest walk. Find the fraction of those who walk. - A man 11 A man is x years old. In 10 years, he will be twice as old as he was 5 years ago. How old will he be in 10 years?
- Dogs weights
Four out of nine dogs weigh less than 20 pounds. What is the decimal equivalent for the number of dogs weighing less than 20 pounds? - Simple form Given ratio 45:90 = Write the ratio in simplest form.
- Vegetables
If 6 people want to share a 25-pound box of vegetables, how many pounds of vegetables should each person get? - Balloon
If a ceiling balloon rises at 120 m (about 400 ft) each minute, what is the ceiling of an overcast deck of stratus clouds 1500 m (about 5000 ft) thick if the balloon disappears into the clouds in 5 minutes? Show your solution. - I added I added 10 to 3 times a number; the result is equal to 4 times the number. What is the number?
- Negative mixed 2
What is −4 2/3 + 2 1/2? Write the answer as a mixed number in simplest form. - Konrad
Konrad coaches football. He cycles 3 km to the stadium at an average 12 km/h speed. How long does Konrad take to cycle to the stadium? - Chemical experiment
For an experiment, a chemical solution starts at a temperature of 25 °C, falls to −3 °C, rises to 15 °C and then falls again to −8 °C. What is the total change in temperature? Add all the changes together for each rise and fall. - Dexter
Dexter spent 1 2/3 hours working on his history homework and another 2 1/5 hours working on his math homework. How many hours did Dexter spend working on the two homework? - The height 4
The height and radius of a cylinder are 25 ft and 5 ft, respectively. What is the surface area? - Haley
Haley collected 1/2 of a bin of glass bottles to recycle. Tiana collected 2 3/4 times as many bins as Haley. How many bins of bottles did Tiana collect? - How much 6
How much does 1 kilo of beef cost if 6 kilos cost R189.90? - Liz makes
Liz makes footprints in the snow with her boots that are 3/4 foot long. Liz's feet are only 2/3 foot long. What expression can be used to find out how much longer Liz's boot prints are than her feet?
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