Maths practice for 12-year-olds - page 229 of 352
Number of problems found: 7021
- Together 3
If Sally can paint a house in 4 hours, and John can paint the same house in 6 hours, how long will it take for both of them to paint the house together? - Trevor
Trevor wishes to tile the floor of his bathroom. The bathroom is rectangular and is 4.2m long and 3.3m wide. The tiles are 30cm by 30cm. Calculate the cost to tile the floor if each tile costs 72 cents. - Average grade
In the 9th grade, the teacher evaluated 24 pupils in the semester: 5 received grade 1, 8 received grade 2, and 11 received grade 3. Find the average grade in mathematics. - After 2
After we planted flowers in 2/5 of our garden, 24m remained unplanted. How many meters is the garden in total? If the total area of the garden is 1, what is the proportion of the remaining area? - Equation 29
Solve the next equation: 2 ( 2x + 3 ) = 8 ( 1 - x) -5 ( x -2 ) - Perimeter of base
The circumference of the base of the rotating cylinder is the same as its height. What is the diameter and height of this cylinder with a volume of 1 liter? - Sewing
The lady cut off one-half of the cloth. She needed three-quarters of this piece to sew a skirt. What part of the original piece of cloth remained? - Comparing and sorting
Arrange in descending order these fractions: 2/7, 7/10 & 1/2 - Maria
Maria has decided to plant grapes in the garden behind her house. His neighbor Ben has grown grapes successfully for a long time and has given Maria advice on how to plant vines. Ben told her to plant them 3 meters apart in rows and 3 meters apart. Maria - Symbols
If 2*3 = 60 ; 3*4 = 120 and 4*5 = 200, what is 2*5? - Irrigation sprinkler
The irrigation sprinkler can twist at an angle of 320° and reach 12 meters. Which area can you irrigate? - Fe metal sheet
5/8 of the metal sheet is consumed for one product, and the second 5/6 remains. What part of the sheet metal is needed for both products together? - My father
My father has a big farm. He planted 6/8 of it with mango trees, 1/2 of the remainder are guava trees, and the remaining 10 trees are santol trees. What is the number of all trees? - The Stolen Money
A man walks into a store and steals a $100 bill. Five minutes later, he returns to the store and buys stuff worth $70. He pays with the bill that he had stolen, so the owner of the store returns him $30. How many dollars did the store owner lose? - Factors 2
A number has three identical factors. If 1 of them is 18. Find the number step by step - To improve
To improve her handwriting, Paula practices writing the numbers 1 to 200 in words. How often will she have written the word "one" in all? - Counting number
What is the smallest counting number divisible by 2,5,7,8 and 15? - A trapezoid
A trapezoid is 75 ft wide on top, 85 ft on the bottom, and the height is 120 ft. What is its area in the square yds? - 7 digit number If 3c54d10 is divisible by 330, what is the sum of c and d?
- Fruits
Amy bought a basket of fruits 1/5 of them were apples,1/4 were oranges, and the rest were 33 bananas. How many fruits did she buy in all?
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