# Examples for 6th grade (the sixth graders) - page 48

- Curved surface area CSA

A cylinder 5cm high has a base radius(7/2) cm. Calculate the curved surface area. - Triangles

Hanka cut the 20 cm long straws into three pieces each piece had a length in cm. Then, with these three pieces, she tried to make a triangle. a) What circuit has each of the triangles? b) How long can the longest side measure? c) How many different trian - Volume of cone

Find the volume of a right circular cone-shaped building with a height of 9 cm and a radius base of 7 cm. - Sum of fractions

What is the sum of 2/3+3/5? - If one

If one litre of pant covers an area of 5 m^{2}how much paint is needed to cover: a) rectangular swimming pool With dimensions 4m x 3m x 2.5m (the Inside walls and the floor only) b) the Inside walls and floor of a cylindrical reservoir with diameter 3m and - Prime factors

Write 98 as product of prime factors - Sewing

The lady cut off one half of cloth. She needed three-quarters of this piece to sew a skirt. What part of the original piece of cloth still remained? - Rectangles

How many different rectangles with sides integers (in mm) have a circumference exactly 1000 cm? - Square into three rectangles

Divide the square with a side length of 12 cm into three rectangles with have the same circumference so that these circumferences are as small as possible. - Mixed2improper

Write the mixed number as an improper fraction. 166 2/3 - Symbols

If 2*3 = 60 ; 3*4 = 120 and 4*5 = 200, what is 2*5? - Clothes

Danka and Janka collect clothes. Danka had 9 more than Janka, so she gave her 7. Which now has more cloth and how many? - Railroad

The railroad runs parallel to the railway. The train travels at 36 km/h on track. In the opposite direction, the motorcycle rides at 90 km/h. The train passes in 3 seconds. How long is a train? - Circle simple

Circumference of a circle is 6.28. What is the area of the circle? - Simple equation 5

Solve equation with fractions: X × 3/8 = 1/2 - Perimeter of square

The square has a circumference 17cm. What is its area? - Fraction and a decimal

Write as a fraction and a decimal. One and two plus three and five hundredths - One hectare

How many square meters are one hectare? - Number with ones

The first digit of the number is 1, if we move this digit to the end we get a 3 times higher number, which is the number? - Natural gas in kWh

Gas consumption for 2017 was 11,301 kWh I paid 532 € How much 1 m^{3}?

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