Maths practice for 11-year-olds. - page 155 of 197
Number of problems found: 3921
- Equation
Find x: x + 1/2 = 1/3
- Breads and bakery
In the bakery, the baker baked 3900 pieces of bread in 6 days. How many breads are baked in one day? How many bakes per month (month=30 days)
- Together 4071
A family of four saves. The father saved 530 CZK per month, the mother 230 CZK less than the father, Tomáš 275 CZK less than the mother, and Jana 20 CZK more than Tomáš. How much CZK did the family save together in 1 year?
- Two-quarters 4068
The theatrical performance began at 7:30 PM and lasted two-quarters of an hour with one 20-minute break. What time did the show end?
- In fractions
An ant climbs 2/5 of the pole in the first hour and climbs 1/4 of the pole in the next hour. What part of the pole does the ant climb in two hours?
- Simple equation
Solve the following simple equation: 2. (4x + 3) = 2-5. (1-x)
- Garden
A Garden with an area of 800 square meters rained 3 mm of water. How many 10-liter cans of water are needed for the same irrigation?
- Equation 4055
Solve the equation and perform the test: a) 3 (5-2x) + 5x = 5 -3 (x -1) b) 2 (4y + 3) -3 = 2 - 5 (1 - y)
- Unknown number 11
That number increased by three equals three times itself.
- Property 4047
Seven times the number minus 3 is as big as three times the same number minus 7. Which number has this property?
- Transferred 4040
The cowboy has 25 horses in two pens. He transferred 5 from the first to the second, then sold 7 horses from the second. How many horses were originally in the first pen? In the first enclosure, there were just 2 times more horses than in the second enclo
- Odd-numbered 4033
Mr. O. came up with two codes for the vault, which he alternates after a week. Both codes have the product of the digit 120. In an even week, it uses the smallest possible number as the code with this property. In the odd week, the largest. No number 1 in
- Ornamental shrubs
Children committed to planting 240 ornamental shrubs. Their commitment, however, was exceeded by 48 shrubs. Write the ratio (r) of actually planted shrubs and commitment by the lowest possible integers a/b.
- -x-3/3 4027
x + 6/6 -x-3/3 = 3/4
- X-2 4025
x-2 / x-1 -2 = x + 1 / x-2
- Calculated 4023
How much does the glass of a display cabinet with dimensions of 3m x 2m and a thickness of 10mm weigh if the weight of the glass is calculated based on its specific volume weight, which is 2600 kg/m³? Therefore, the weight of one sheet of glass measuring
- Norm
Three workers planted 3555 seedlings of tomatoes in one day. The first worked at the standard norm, the second planted 120 more seedlings, and the third was 135 more than the first worker. How many seedlings were the standard norm?
- Two machines
Performances of two machines are in a ratio of 7:12. A machine with less power produced 406 pieces of products per shift. a) How many pieces are produced per shift second machine? b) How many pieces produced two machines together for five shifts?
- Orchard
3/5 of the trees in the orchard are apples, 1/3 are cherries, and the remaining five trees are pears. How many trees are in the orchard?
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