Maths practice for 12-year-olds - page 149 of 351
Number of problems found: 7016
- The tallest
The tallest building in the world used to be Taipei 101 in Taiwan. Its height is 0.509 km. The tallest building in North America was Sears Towers in Chicago, USA. Its height is 0.442 km. What is the difference in the heights of the buildings? - Martin
Martin is making a model of a Native American canoe. He has 5 1/2 feet of wood. He uses 2 3/4 feet for the hull and 1 1/4 feet for a paddle. How much wood does he have left? Martin has x feet of wood left. - Bathroom 3
De Mesa family will soon be occupying their newly renovated house. However, the bathroom, measuring 10ft by 16ft, is still covered with tiles. If the tiles they desire measure 2/5 ft by 2/5ft, how many tiles will they need to cover the bathroom floor? - Honey
Ila collected the honey from 3 of her beehives. From the first hive, she collected 2/3 gallons of honey. The last two hives yielded 1/4 gallon each. After using some of the honey she collected for baking, Lila found that she only had 3/4 gallon of honey l - Jordan
Jordan wants to bring in cookie cakes to share with his 23 classmates for his birthday. His mom is willing to buy up to six cookie cakes, and Jordan must share the cakes equally with his classmates (and himself). Answer the questions to help Jordan decide - Tiana
Tiana is buying party favors for the guests at her 12th birthday party. Each party favor costs $2.39. If she buys 15 party favors, how much money does she spend? - Carla 2
Carla is renting a canoe. It costs $80 for 2 hours and $110 for 4 hours. What is the rate of change for this situation? - Michael
Michael had a bar of chocolate. He ate 1/2 of it and gave away 1/3. What fraction had he left? - Which 3
Which is an equivalent ratio of 12:36 - Share
Carmen owns five shares of a certain stock. Yesterday the total value of her shares went down by 20 dollars. What was the change in value for each share? - Jewelry box
The bottom of Zeyda's jewelry box is a rectangle with a length of 5 3/8 inches and a width of 3 1/4 inches. What is the area at the bottom of the jewelry box? - I need
I need to calculate the height of the cylinder. I have a given that the radius is 6 cm and the volume is 282.6 cm³. What is the formula for this? - Calculate 41431
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?
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