# 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. - Classmates

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. - Tractors

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 - Equatiom

Solve equation with negatives: X/(-5) + 2 = -9

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