Examples for 6th grade (the sixth graders) - page 34
The perpetrator is a number that is smaller than the number 80. It is a multiple of five and it is odd. If we added up the tens and ones of this number we get number 8.
To cuboid tank whose bottom has dimensions of 9 m and 15 m were flow 1080 hectoliters of water. This was filled 40% of the tank volume. Calculate the depth of the tank.
- Wood lumber
Wooden lumber is 4 m long and has a cross section square with side 15 cm. Calculate: a) the volume of lumber b) the weight of the lumber if 1 m3 weighs 790 kg
- 15 number
What number is smaller (greater) by 15 than its half?
- 2d shape
Calculate the content of a shape in which an arbitrary point is not more than 3 cm from the segment AB. The length of the segment AB is 5 cm.
How many minutes does it take to fill the tank to 25 cubic meters of water filled 150hl per hour?
- Sales off
Calculate what was the original price of the good, if the price after discount 25% and the subsequent rise of 20% is 400 USD.
How many times increases the surface area of a cube with edge 23.4 cm if the length of the edge doubled?
The plot on which Mr. Kalous is to build a house has the shape of a rectangle. On a 1: 500 scale, its dimensions are 7cm and 5.5cm. Find out the dimensions of the plot. Calculate the parcel size.
- The shop
The shop has 3 hectoliters of water. How many liter bottles is it?
- Lcm 2
Create the smallest possible number that is divisible by numbers 5,8,9,4,3
If the general sorts troops into the crowd by nine left 6. How many soldiers has regiment if we know that they are less than 300?
Worker cut his thick log to 6 pieces for 30 min. How long he cut log to 12 pieces?
- Car model
Car model is 52 mm long and the real car is 4524 mm long. What was the scale of model car?
- Cube edge
Determine the edges of the cube when the surface is equal to 37.5 cm square.
- Football team
Football team has in store black, purple and orange shirts, blue and white shorts and striped and gray socks. How many different outfits players may start?
- Water level
To cuoid shaped poll, bottom size 2m and 3.5m; flows water at a rate of 50 liters per minute. How long will take to water reach level 50 cm?
I think the number. If I add to its third seven I get same as when to its quarter add 8. Which is the number?
Sick Marcel already taken six tablets, which was a quarter of the total number of pills in the pack. How many pills were in the pack?
- Quotient 3
If the quotient of 8/13 and 2 is subtracted from the product of 1 3/4 and 8/21, what is the difference?