Maths practice for 11-year-olds. - page 213 of 230
Number of problems found: 4584
- Log
The worker cut his thick log into six pieces for 30 min. How long did he cut the log to 12 pieces?
- One-third
A one-third of an unknown number is equal to five times as great as the difference between the same unknown number and the number 28. Find the unknown number.
- Timeage
Seven times my age is 8, less than the largest two-digit number. How old am I?
- Jumps
At least how many jumps must a frog do to overcome the distance of 7 meters? The jump of a frog is 18 cm long.
- Speeds
George passes on the way to school, a distance of 200 meters in 165 seconds. What is the average walking speed in m/s and km/h?
- 7 roses
Peter bought seven roses. When he paid for them, he had 4 euros left. If he had bought five roses, he would have had 40 euros left. Thus, Peter had 40 euros before the purchase.
- Reduced 1631
Three times the number reduced by 10 is as much as 100, as 100 is more than twice that. What is the number?
- Unknown number 5
I think of an unknown number. If we enlarge it five times, then subtract 3, and the result decreases by 75%, we get one greater than the number. What number am I thinking?
- Store
Peter paid 3 euros in-store, more than half the amount on arrival at the store. When he left the shop, he had 10 euros in his wallet. How many euros does he have upon arrival at the store?
- Stairs
Between adjacent levels are 15 stairs. If the step were 1.2 cm shorter, there would be 16 stairs. What is the stair height?
- Square plate
The locksmith cut a square metal plate with a sidelong 6 dm into two identical rectangular openings with 2.5 dm and 2 dm dimensions. Calculate the remainder of the square plate.
- Pizza master
Master says that he can split pizza into 16 parts by five equals straight cuts. Is it possible?
- Buing
Brother got to buy 240 CZK and could buy for 1/8 what he wanted. Could he pay the rest of the purchase for 200 CZK?
- 9-gon
The sum of interior angles of 9-gon is:
- Aunt
Annie's aunt is 35 years old, and Annie is 14 years. For how many years will aunt have twice as many years as Annie?
- Little hand
What angle shifted the little hand on the clock after one hour and 38 minutes?
- Clock Tower
What angle is between the hands-on Clock Tower when it shows 17 hours and 35 minutes?
- Equation
-3(2-x)-x=2(3x+1)+2x
- Cuboid
How many times will the volume of a cuboid increase if one dimension is twice larger, the second dimension three times larger, and the third dimension four times lower?
- Lunch
Jane eats the whole lunch for 30 minutes. Which part of the lunch does he eat in 180 seconds?
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