Maths practice for 11-year-olds. - page 173 of 221
Number of problems found: 4414
- Expression substitution
Substitute for variables and specify the value of the expression: a) x + y + 2x-3y. x = 1, y = 2 b) a + 5b-a + 4b. a = 8, b = -8 c) mn-5mn + 6mn. M = -3, n = -4 d) k + 10m + 5k-6m + 13km. k = 1, m = 0 - Classroom
One-eighth of the 9th class was interested in studying at a grammar school, a business academy one-sixth, and a secondary vocational school quarter to SOU third. The remaining three students were interested in the school of art direction. How many student - Glass cost
We had eight panes of glass cut by the glazier. Each had the shape of a square with a side of 18 cm. We paid 44 CZK. How much does 1 m² of glass cost? - Hair salon customers
Sixty customers visited the hair salon. Customers were either blondes, brunettes, brunettes, or redheads. One in three was brunette, one in five was blonde, and one in fifteen was a redhead. How many brunettes were there in the salon? - Book cost
Four books cost m crowns. How many 5, 6, 7, 8 such books cost? - Fraction order
Arrange fractions in ascending order: 7/9, 5/6, 2/3, 11/12, 3/4; Write the resulting order as a 5-digit number, digit = order. - Expression evaluation Evaluate the expression 9-4x for x = 0, -2.3 / 4, 2.4, 5
- Expression - decimals
Specify the value of the expression with decimal numbers: (4.416356) -7.152+ (74.855) =? - Cube
One cube has an edge increased five times. How many times will larger its surface area and volume? - Chocolate sharing
Three classmates, Michaella, Brielle, and Jana, received a box of chocolates, which contained 81 packages of sweets. Michaella ate a third of the candies and Jana a sixth of the rest. How many candies are left for Brielle? - Simple equation
Solve the light equation: 2y + 3 + 3y = 3y + 2 - Target hits
Draw a target with the given radii. Mark Mirek's interventions and Pepi Mirek's interventions 4,0,3,5,3 Pepa had 14 hits for three shots. - Two friends
Two friends met as a good man perished together for a beer. After recovering the most important topics (politics, women, football ...), one asks: - And how many children do you have? - I have three children. - And how many years have you? A friend already - Motorcycles on autodrome
Three racing motorcycles drive at different speeds on the autodrome. One motorcycle can go around the circuit in 2 minutes, the second in 4 minutes, and the third in 7 minutes. If all three bikes enter the race track simultaneously, how long before they a - Ice cream flavors
Half of the class likes vanilla ice cream, half of the rest like strawberry, and the other six like hazelnut. How many children were there in the class? - Debt settlement Karel owes Mark 70 euros, Mark owes Fér 100 euros, and Frank owes Karl 30 euros. When they settle their debts, how many euros will they have, more or less?
- Equation solving
Solve the equation and perform the test: 1- (x-x/7-1/7) = 7-9x/2 +5/2 - Equation solving Solve the equation and perform the test: 2 (4x + 3) - 2 = 6 - 5 (1 - x)
- Student scores
Dorka had a total of 22 marks in her student book. She had three times less than three ones. She had only two doubles. How many units did Dorka have in the student's book, and how many threes? - Flu epidemic
During the flu epidemic, 10% of the school's students fell ill on Monday, another 39 on Tuesday, and one-eighth of all the school's students joined them on Wednesday. During these three days, one-third of all school pupils fell ill. How many students does
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