Maths practice for 12-year-olds - page 90 of 361
Number of problems found: 7210
- One third of a number
What is 1/3 of 18? - Is prime? Which of the following numbers is prime? 21,11,18,25
- Length and width
Use the 5-step procedure. The perimeter of a rectangle is 34 in. The length is 4 in less than three times the width. Find the length and width. - Clarissa 2
Clarissa is cutting construction paper into rectangles for a project. She needs to cut one 12 inches x 15 1/3 inches rectangle. She needs to cut another rectangle 10 1/4 inches by 10 1/3 inches. How many Total square inches of construction paper does Clar - A rectangle 10
A rectangle has a length of 8 millimeters and an area of 216 square millimeters. What is the width? What is the perimeter? - Centimeters 72134
The area of the square is equal to 1024 square centimeters. Calculate the perimeter of the square and the length of the side a. - Number 72124
The ratio of three times the number x and twice the number 9 equals 3. What is the value of the number x?
- Temperature 72104
Jaroslav had a temperature of 36.8 °C in the morning. In the afternoon, it had a temperature of 38.4 °C. How many °C did Jaroslav's temperature rise? - Pancake mix
According to a recipe, each batch of pancake mix can make 12 pancakes. Lilly is making three batches for a brunch party. If each batch needs 7/12 cups of milk, how much milk does she need in total? - The largest 4
The largest room in the quarantine area is 45 m long and 30 m wide. The height of the room is 15 m. If the occupancy guidelines recommend at least five m³ per person, what is the maximum number of people allowed in the room? - Bedroom floor
Jayson's square bedroom floor measures 2m on its side. How big should the carpet be to cover the whole floor? - Identical 72024
Four rabbits are 15 cents cheaper than seven identical rabbits. How much do three rabbits cost? - Divisible 72004 Find the natural number between the numbers 70 and 80 divisible without the remainder 5, 3, 15, and 25.
- Jana mixing
Jana mix is 1/4 gallon of orange juice and 1/2 gallon of pineapple juice to make punch. Each serving is 1/16 gallon. How many servings can go in? Make sure you work. - Juice servings Dina has 3 5/8 liters of pineapple juice. If one serving is 1/4 liter, how many servings of pineapple juice does she have?
- Undeveloped 71924
The Doležals will build a house. Their plot is a trapezoid with bases 42m and 18m long, and the distance between the bases is 23m. According to the project, the house will have a built-up area of 146 m². How many square meters of land will remain undeve - Kevin 2
Kevin is a farmer. He sells his crop at R5,66 per kilogram. How much will 15kg cost? - Dolores
Dolores has some cookies and does not want to tell the exact number. Instead, she gives a riddle. First, multiply the number by 2. Then, add 2000 to the result. After dividing the answer by 2, the result is 1036. How many cookies does Dolores have? - Jeníček 71864
Ondro owes Janek 2 euros. Jeníček owes Maťa 3 euros. and Maťo owes Ondra 1.5 euros. How many euros will they have, more or less, if they pay their debts? - Azile
Azile had R150 (South African Rand - currency/money - code ZAR). He spent 2/5 of the money on a shirt, and then he spent 2/3 of the money left to buy a cap. a) How much did the shirt cost? b)How much did he have left after buying the shirt? c) How much di
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