Maths practice for 12-year-olds - page 255 of 347
Number of problems found: 6923
- Sheet of paper
Is the sheet of paper measuring 18 and 25 cm enough for taping 9 cm cubes with an edge? (1 = yes, 0 = no) - Colza
The agricultural cooperative harvested 525 ares of colza, which received 5.6 tons of seeds. Calculate the yield per hectare. - Outer angles
The outer angle of the triangle ABC at the A vertex is 71°40 ' outer angle at the vertex B is 136°50'. What size is the inner triangle angle at the vertex C? - Teacher
Teacher Rem bought 360 pieces of cupcakes for their school's outreach program. 5/9 of the cupcakes were a chocolate flavor, 1/4 were a pandan flavor, and the rest were a vanilla flavor. How much more pandan flavor cupcakes than vanilla flavor? - Passenger boat
Two-fifths of the passengers in the passenger boat were boys. 1/3 of them were girls, and the rest were adults. If there were 60 passengers on the ship, how many more boys than adults were there? - Three-digit numbers
How many different three-digit natural numbers can be created so that the digits are different and the last digit is 0? - Cube wall
Calculate the cube's diagonal if you know that one wall's surface equals 36 centimeters square. Please also calculate its volume. - Simple equation 2
Find X in this simple equation: X/9 = 96/108 - Mow the lawn
Dan would mow the lawn in 12 hours and Milada in 16 hours. How long will it take the lawn mow together? - Number division
Divide the number into two summands, which are in the given ratio: a) 3, 11:4 b) 5.1 8:9 c) 1 7:3 d) 0.42 1:6 - Odd numbers
The sum of four consecutive odd numbers is 1048. Find those numbers. - Testing
Students in high school have 10 points for each good-solved task. Five points deduct the wrong answer. After solving 20 tasks, student Michael had 80 points. How many tasks did he solve correctly, and how many were wrong? - How old The student who asked how many years he answered: "After ten years, I will be twice as old as I was four years ago. How old is the student?
- Cars 6
At 9:00 AM, two cars started from the same town and traveled at a rate of 35 miles per hour, and the other car traveled at a speed of 40 miles per hour. After how many hours will the cars be 30 miles apart? - Money 6
Lita had some money. She spent 1/2 of it on a handbag and 1/3 of the remainder on the blouse. She had 260.00. How much money did she have at the start? - Two cuboids
Find the volume of the cuboidal box with one edge: a) 1.4m and b) 2.1 dm. - Bathroom 2
A bathroom is 2.4 meters long and 1.8 meters wide. How many square tiles, 1 dm on each side, will be used to cover it? - Pipe cross section
The pipe has an outside diameter of 1100 mm, and the pipe wall is 100 mm thick. Calculate the cross-section of this pipe. - Classroom chairs
A school has m classrooms. Ten of the classrooms have 36 chairs each, and the remaining classrooms have 34 chairs each. Write a formula to calculate the total number of chairs in the school. Calculate for m = @m. - Unknown number 24
If we add 20, we get 50% of its triple. What is this unknown number?
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