Maths practice for 12-year-olds - page 258 of 354
Number of problems found: 7071
- Finding Second Summand
Calculate the second summand if you know that one summand is 28.6, and the result of the sum is -100. - Elevator floors
A skyscraper occupied his car in an underground garage marked with buttons in elevator number -3. He drove to his floor, number 26. How many floors did he take in the elevator? - Timeline calculation
Archimedes was born in -287. Caesar was born in -101. How many years later was Caesar born? - Square diagonal
The area of the square is equal to 2.56 square meters. Calculate its diagonal. - 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? - Clock path
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 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
Dano 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?
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