Maths practice for 12-year-olds - page 151 of 355
Number of problems found: 7085
- Cube surface
Calculate the surface of a cube whose edge measures 8 dm. - Rose spends
Rose spends 2 1/3 hours studying Math, 1 3/4 hours studying English, and 2 1/4 hours studying Science. Find her average time studying the three subjects. - Marbles
Dave had 40 marbles. Junjun has 2 1/5 more than Dave's marbles. How many marbles do they have altogether? - Alice 2
Alice swims for 2.5 hours every Saturday and 3.5 hours every Sunday. How many hours does she swim in 4 weeks? - Roll of wallpaper
An art student uses a roll of wallpaper to decorate two gift boxes. The student will use 3 1/3 yards of paper for one box and 5/6 yards of paper for the other box. He must cut the paper into pieces that are 1/6 yard long. How many pieces will the student - Lin has
Lin has a cake pan that has a length of 8/3 inches, a width of 15/4 inches, and a height of 3/2 inches. What is the volume of the cake pan? - Pupils 7
There are 40 pupils in a certain class. 3/5 of the class are boys. How many are girls? - Karina
Karina has 5 4/7 meters of cloth. She needs 3 1/6 meters of it to make a curtain for her window. How many meters of cloth was left to her after making the curtain? - The distance
The distance between two towns on a given map is 3 ½ cm. If ½ cm represents 6 km, what is the distance between the two towns? - Even/odd numbers
What is the product of 0.97 and the following odd decimal number? - Brass ball
What is the weight of a hollow brass ball, the outer diameter of which is 16 cm and the wall thickness is 2 cm, while the density of brass is ϱ = 8.5 g - Ingrid
Ingrid watched television for 2 1/4 hours, and Devon watched for 3 2/3 hours. For how many hours did they watch television in total? - The book 4
Mr. Kinion read 3 3/4 chapters in his book on Monday. He then read 2 4/6 more chapters on Tuesday. How many chapters has he read so far? - Reciprocal value 2
Annabelle is making burger patties if each burger patty needs 1/16 kilogram of beef. How many patties can she make with a kilo of beef? - Cindy run
Suppose it takes 1/3 of an hour for Cindy to run 3/5 of a mile. How many miles does she run in 1 hour? - The difference
Find the difference between 2/7 and 1/21 - Jim collected
Jim collected five bins of glass bottles to recycle. Lucia collected 3 1/5 times as many bins as Jim. How many bins of bottles did Lucia collect? - Strawberry-rhubarb pie
Larry had 3/7 of a strawberry-rhubarb pie left over. He split the leftover pie evenly between his three children. What fraction of a pie did each child get? - Tablespoon of salt
Mrs. Monika uses 3/4 tablespoons of salt for every kilogram of ground pork. How many tablespoons of salt will she use for 3 1/2 kilograms of ground pork? - A merry
A merry-go-round can hold 36 people on each 5-minute ride. How many people would have received a ride on the merry-go-round in an hour?
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