Maths practice for 12-year-olds - page 92 of 350

Number of problems found: 6981

Dimensions 71344
How many tiles are needed to cover the bathroom floor, which has the shape of a rectangle measuring 4 m and 25 dm? The tiles are square with dimensions of 10 cm.
Calculate 71324
Calculate the volume of a cube with a surface area of 1,795.74 cm²
An airplane 2
An airplane left Changi International Airport at 9 PM and flew 5841 km to Dubai International Airport. If the airplane flies at an average speed of 649 km/h, what is the plane's arrival time? A) 6 AM the same day B) 8 AM the same day C) 6 AM the next day
Water 62
The water tank filled with 1/5 of water is in the shape of a cuboid with a height of 80 cm and a base measuring 30 cm x 40 cm. What is the height of the water level in the tank?
Two-digit 71134
How many natural two-digit numbers can we form from the digits 0, 1, 2, and 3 if we cannot repeat the digits in these numbers?
On Tuesday 2
On Tuesday, the temperature at 9 AM at Camden's house was -4°Fahrenheit. By 4 PM, the temperature at his house was 8°Fahrenheit. Which statement about the change in temperature from 9 AM to 4 PM at Camden's house is true? Is house true? A. The temperature
The temperature 29
The temperature at 6 P.M. is -11°Fahrenheit. During the night, the temperature rises by 7°F drops by 3°F, and rise by 5°F. What is the temperature after these changes?
Minus temperature comparing
At noon, the temperature was –25°F. At 8:00 PM, the temperature was –14°F. Did the temperature rise or fall? ...
Delta t
The temperature decreased 14°F between 10 PM and 4 AM. The temperature at 4 AM was 67°F. What was the temperature at 10 PM?
Yesterday 5
Yesterday, between noon and midnight, the temperature went down by 32.1°F. If the temperature was -6.6°F at midnight, what was it at noon?
Round to ones
What is 4.456 rounded to the nearest one?
My digits
My digits are 1, 2, 5, 6, and 7, but not in that order. My one digit is an even number. My tenth digit is 1. My hundredth digit is a number between 4 and 6. My thousandth digit is the digit with the highest value. I am less than 50000.
Branisko 70954
The Branisko tunnel has a length of 4975m. How long will a car pass through the tunnel if the speed limit is 80km/h?
A rectangular 7
A rectangular water tank has a square base of 90 cm on its side. If it is 300 cm high, how much water can it hold?
Change in temperature
The morning temperature at the top of a mountain was –9°C (minus 9 degrees). In the afternoon, the temperature was 4°C. What was the change in temperature from the morning to the afternoon?
Polya's method
On the way home from school, Dora likes to eat cookies. One daytime, just as she reached into her backpack, Swiper jumped into her path and grabbed her bag. It stole half of her cookies plus two more. A bit shaken, Dora continued home. Before she had a ca
Eat and drink
If there are 16 people in a room, 3/8 of them are eating, and 1/4 are doing something else. How many people are drinking?
Farmer 6
The farmer planted 32 acres of corn. Animals ate 1/8 of the corn he planted. How many acres of corn did the animals eat?
In the park
Ten children in the park. Four-tenths are wearing a red shirt. How many children in the park are wearing red shirts?
Mis Harding
Mis Harding will change her tiles; the yards are 2 1/2 yards and 2 1/2 yards on the side. What is her area A 6 1/4 B 4 1/2 C 8 1/2 D 5 1/4

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