Maths practice for 12-year-olds - page 98 of 355

Number of problems found: 7081

Bathroom tile area
My neighbors are remodeling their apartment. My neighbor let me see her new bathroom. It is a rectangle with dimensions of 2 m and 2.5 m. It has a bathtub with dimensions of 150 cm and 60 cm. The rest of the floor is covered with beautiful tiles. How many
Mandarin bowl initial
When the lion took two mandarins from the bowl and Milada took one-fifth of the rest, four mandarins remained in the bowl. How many tangerines were initially on the dish?
One ticket
If I sold 50 tickets and got paid 70$, How much was the ticket?
Evaluate 23
Evaluate expression: 2 less than the quotient of 7 and 3
Baking a cake
Christy is baking a cake that has a 9-inch diameter. She wants to cover the top of the cake with buttercream icing. How much icing will she need?
A train
A train can travel 1136 miles in 4 hours. What is the unit rate at which this train travels per hour? Write in miles per hour.
Car opposite speeds
From cities A and B, which are 50 km apart, two cars set off in the same direction simultaneously with average speeds of 80 km/h and 120 km/h. How long will the faster car reach, the slower one, and at what distance from city A?
Expression writing forms
Write the expression n, which is: (a) Six greater than twice the expression y; b) equal to the square root of the sum of the expression y and the number 3; (c) three times less than four times the expression y.
Apple average weight
The basket contains five red apples with an average weight of 125 grams and one yellow apple. The average weight of all apples in a basket is 120 grams. Determine the weight of the yellow apple in grams.
Cube seat fabric
How much fabric will be needed to cover 12 cube-shaped seats with a 40cm edge?
Cube edge creation
From how many cubes with a 4 cm edge can a cube with a 16 cm edge be created?
Temperature - change
The thermometer showed -2 °C in the morning. By lunch, the temperature had risen by 5°C. The temperature had dropped by 13°C till midnight. What temperature in °C did the thermometer show at midnight?
Digit number difference
The digits 1, 2, 4, and 8 form two four-digit numbers so that all 4 digits are used in the notation of each number. Calculate the difference between such largest even number and smallest odd number (in that order).
Number divisor list
List all compound positive two-digit numbers whose greatest common divisor with the number 51 is the number 17.
Number divisible list
List all divisible numbers by six and seven that are greater than 79 and less than 91.
Grandma 9
Grandma bought 2 kilograms of apples at a crowns per kilogram, 5 kg of potatoes at b crowns per kilogram, and one celery for 12 crowns. She paid with three fifty crowns. o Depending on the quantities a, b, express the amount in crowns that was returned to
Number sum comparison
How many times is the number 0.045 greater than the sum of 0.006 and 0.003?
Fraction comparison times
How many times is twice one-third larger than one-ninth?
Difference of squares
How many times is the difference between the squares of numbers 4 and 2 bigger than the square of their difference (in this order)?
Fraction equality box
Write the assignment in a fraction. Fill in the number in the box so that the equality applies: (Write the result as a fraction in the base form.) (1 1/3 - 3/4) · ___ = 1/2

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