Expression of a variable from the formula - practice for 11 year olds - page 14 of 18
Number of problems found: 341
- 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? - Wine
A bottle of wine costs 21 euros, and wine is 20 times more expensive than a bottle. How much does a bottle cost? - Cuboid
Cuboid has a surface of 516 cm². Side a = 6 cm and b = 12 cm. How long is the side c =? - Surface of cuboid
Find the surface of the cuboid if its volume is 52.8 cm³ and the length of its two edges is 2 cm and 6 cm.
- Bike wheel
The bike wheel has a radius of 30cm. How often does it turn if we go on a 471m bike? - Grandfather's 5067
Jirka has a step length of 40 cm. He takes six hundred steps around his grandfather's garden. The length of the garden is three times greater than its width. Jirka wanted to calculate his grandfather's garden's length, width, and area. - Perimeter to area
Calculate the area of a circle with a perimeter of 15 meters. - Perimeter from area
What is the perimeter of the square if its area is 64 cm²? - Circumference 4420
In an isosceles triangle with a circumference of 36 cm, the height at the base is 12 cm. Calculate the length of the arm of a given triangle.
- Family
Son is 3/5 smaller than the mother. Mother is 99 cm higher than the son. How tall is the mother? - Letohrad 4396
On a map at a scale of 1:400,000, the distance between Letohrad and Prague is 4.5 cm. What speed does Dad have to go to be in Prague at 9 o'clock when he leaves at 6 o'clock, 40 minutes? - Calculate 4382
Each has a width of 218 cm and an area of 10,900 cm². Calculate the height of the window. - Express 4380
1 / f = 1 / a + 1 / b express b - Strawberry 4312
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?
- Rectangular 4206
The rectangular garden is 81 meters long and 36 meters wide. How long will the square garden's side be in the same area? - Equivalent 4205
They have their own money in the magical land, Fu, Ru, and Mu. Three Mu are equal to five Ru. Six Ru is equal to eighteen Fu. How many is Fu equivalent to one Mu? - Together 4204
Three bowls together have the same price as seven plates. Four bowls have the price of six cups. How many cups are as valuable as 28 plates? - Rectangular 4184
The rectangular plot has sides 20m and 28m long. Calculate the area of the rhizome and find out how long the longer side of the plot with the same area must be if the shorter side is 16 meters long. Also, calculate the length of the fence around each rhiz - Centimeters 4178
Find the surface of a block whose one wall is 48 centimeters square and the other wall is 30 centimeters square.
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Expression of a variable from the formula - math word problems. Maths practice for 11-year-olds..