Math practice for 13 year olds - page 291 of 424
Number of problems found: 8463
- Anywhere 5880
The bus runs 6 km in 9 minutes. How many minutes will the bus go to a place 42 km away if it doesn't stop along the way? - Separated 5878
How many cm on a map with a scale of 1:150,000 will two cities be separated when their distance is 30 km? - Block-shaped tank
The block-shaped tank has dimensions of 320 cm, 50 cm, and 180 cm. 1. How much water can fit in it? 2. It was 45% filled. How much water was in it? - Different 5874
Mišo and Rišo ran back and forth on the running track. They started towards each other, each from a different end of the track. Both were still running at the same speed, each at a different speed. The first time, they met 800 m from one end of the track, - Tickets 5872
Three cinema tickets are 24 € cheaper than seven tickets. How many cinema tickets can we buy if we have € 32? - Michaell 5871
Michaell and Erika saved € 30. Erika saved five times more than Michaell. How much did Erika save? - Construct 5868
Construct a square if u-a = 1 - Perpendicular 5865
We cut the cube with two mutually perpendicular cuts, each parallel to one of the cube's walls. By what percentage is the sum of the surfaces of all cuboids created in this way greater than the surface of the original cube? - 9th-grade 5864
9th-grade students were marked 28 students. ... .1 25% of students. ..2 40% of students. ..3 How many students were there in the 9th grade? - President's 5862
For the opening ball of the season, the president's wife bought a necklace with a bracelet for 768 euros. How much did the necklace cost, and how much did the bracelet cost if the bracelet was 40% off a) cheaper, b) more expensive than the necklace? - Profit per kilo
The trader sells apples at a profit of 20% per kilogram. Today, he decided to reduce the price of apples by 10%. How much profit does the trader have today? - Multiplied 5860
Which number, in the form of a fraction, needs to be multiplied by 40 to get a 6% smaller number? - Applications 5859
2600 pupils applied for admission interviews, which was 130% of the expected number. How many applications were expected? - Inlets 5858
The pool is filled with three inlets in 12 hours. In how many hours would this pool be filled with five inlets? - ABCD square
In the ABCD square, the X point lies on the diagonal AC. The length of the XC is three times the length of the AX segment. Point S is the center of the AB side. The length of the AB side is 1 cm. What is the length of the XS segment? - Isosceles from square
How many isosceles triangles form in a square when we mark all diagonals? - Charity
Tereza earns 50% more than she spends each month. Patricia earns the same as Teresa but spends 20% less than Teresa. Each of them sends a fifth of the unspent money to the children's home account each month. How much more or less does Patricia send than T - Television 5854
Uncle decided to buy a TV for € 200. He had € 34 in cash. He borrowed the remaining amount. What percentage of the borrowed amount was from the price of the television? - Harvesters 5853
One combine harvester harvests a wheat field in 12 hours, and another combine harvester in 16 hours. How long does the same field harvest the third combine harvester alone if all three harvesters harvest the wheat field in 2 hours? - Discounted 5850
The T-shirts were discounted by 30%, so the three T-shirts cost only CZK 50 more after the discount than the two T-shirts cost before the discount. How much did one T-shirt cost before the deal?
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