Maths practice for 12-year-olds - page 259 of 351

Number of problems found: 7011

Snowman 3
During the last winter carnival, the local college students built a 30- foot snowman out of 109 tons of snow. How much snow will be needed to build a 36- foot snowman this year?
Cardboard
How many m² of cardboard are needed to make the cuboid with dimensions 40 cm, 60 cm, and 20 cm?
Describe 5247
The large hand on the clock is 14 cm long. What path will the tip of the hand describe in 35 minutes?
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.
Divide money 2
Ben and Dan had the same amount of money at the start. When Ben gave 300 to Dan, the ratio of Ben's money to Dan's money became 2:3. How much money did each have at first?
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 5226
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
Dano would mow the lawn in 12 hours and Milada in 16 hours. How long will it take the lawn mow together?
Summands 5215
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?
Boys and girls 2
The ratio of boys to girls in the math club is 4:3 . After eight more girls join the club, the ratio becomes 1:1. How many members are there in the club now?
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?

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