Problems for 6th grade (the sixth graders)
- Double 5
Peter was thinking of a number. Peter doubles it and gets an answer of 8.6. What was the original number?
- Find the 6
Find the total cost of 10 computers at $ 2100 each and 7 boxes of diskettes at $12 each
- Temperature 5
Temperature outside starts at 0 Fahrenheit. Over time the temperature changes at a rate of -0.6 Fahrenheit per hour. How long will it take for the temperature to reach -4.5 Fahrenheit?
- Lengths of the pool
Miguel swam 6 lengths of the pool. Mat swam 3 times as far as Miguel. Lionel swam 1/3 as far as Miguel. How many lengths did mat swim?
- Outside temperature
The temperature outside was 57 degree Fahrenheit. During the next few hours it decreased by 18 degrees and then increased by 23 degrees. Find new temperature.
- Fractions 3
Calculate 1/9 of 27:
- Edges or sides
Calculate the cube volume, if the sum of the lengths of all sides is 276 cm.
Roman is ranked 12th highest and eleventh lowest pupil. How many classmates does Roman have?
- Perimeter of square
The square has a circumference 17cm. What is its area?
- Evaluate expression 2
Evaluate expression with negatives: (-3)+4+(-8)+(-6)+4+(-1)
- Perpendicular prism
Calculate the volume of the perpendicular prism if its height is 60.8 cm and the base is a rectangular triangle with 40.4 cm and 43 cm legs.
- Isosceles triangle
The circumference of the isosceles triangle is 32.5 dm. Base length is 153 cm. How long is the leg of this triangle?
- One hectare
How many square meters are one hectare?
- Density of the concrete
Find the density of the concrete of the cuboid-shaped column has dimensions of 20 x 20 cm x 2 m if the weight of the column is 200 kg.
5 tractors will plow the field for 8 hours. In 2 hours, 1 tractor broke down. How long do the remaining tractors complete the plow?
- Difference in temperatures
The temperature in the number line show minus 15 degree celsius and 8 degree celsius. What is the different between the temperatures?
- Sum of fractions
What is the sum of 2/3+3/5?
- Land area 2
A land area was divided among the three heirs in the ratio 5:2:4. If the largest share was 20 hectares of land, what is the total area of land? Please show your solution and what kind of proportion is this please
- Reciprocal equation 3
Solve reciprocal equation: 1/2 + 2/3=1/x
Solve equation with negatives: X/(-5) + 2 = -9