Examples for 6th grade (the sixth graders) - page 48
Drawing paper has dimensions of 60cm and 840mm. Pupils have to divide it into squares so that they can make a pexeso. What dimension must squares have if their side is to be larger than 3cm and less than 10cm?
- Prime factors
Write 98 as product of prime factors
- 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.
- Curved surface area CSA
A cylinder 5cm high has a base radius(7/2) cm. Calculate the curved surface area.
Write the mixed number as an improper fraction. 166 2/3
- Sum of fractions
What is the sum of 2/3+3/5?
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?
- If one
If one litre of pant covers an area of 5 m2 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
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?
How many different rectangles with sides integers (in mm) have a circumference exactly 1000 cm?
- The cube
The cube has an edge of 25 cm. We cut it into small cubes of 5 cm long side. How many of these little ones left when we build a new cube of 20 cm in length?
- Simple equation 5
Solve equation with fractions: X × 3/8 = 1/2
- 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.
Danka and Janka collect clothes. Danka had 9 more than Janka, so she gave her 7. Which now has more cloth and how many?
If 2*3 = 60 ; 3*4 = 120 and 4*5 = 200, what is 2*5?
- Circle simple
Circumference of a circle is 6.28. What is the area of the circle?
- Perimeter of square
The square has a circumference 17cm. What is its area?
- One hectare
How many square meters are one hectare?
- Fraction and a decimal
Write as a fraction and a decimal. One and two plus three and five hundredths
- Seven times
Which number seven times is just as higher as 27, how much is smaller than 29?