# Problems for 6th grade (the sixth graders) - page 51

1. Birthday party For her youngest son's birthday party, mother bought 6 3/4 kg of hotdog and 5 1/3 dozens bread rolls. Hotdogs cost 160 per kilogram and a dozen bread roll costs 25. How much did she spend in all?
2. Pizza 5 You have 2/4 of a pizza and you want to share it equally between 2 people how much pizza does each person get?
3. To improper fraction Change mixed number to improper fraction a) 1 2/15 b) -2 15/17
4. Customary length Convert length 65yd 2 ft to ft
5. Chewing gums For 3 chewing gums, you will pay 20 CZK less than 7 chewing gums. How much is 1 chewing gum and how much does a 5pcs package cost?
6. Adding mixed numbers Add this two mixed numbers: 1 5/6 + 2 2/11=
7. The lowest The lowest temperature on Thursday was 20°C. The lowest temperature on Saturday was 12°C. What was the difference between the lowest temperatures?
8. Pencil cut Veronika cut 10cm pencil. Each turn, the pencil was reduced by 0.2mm. She turned the pencil 100 times. How many centimeters has a pencil now?
9. Unknown number I think the number. I'll reduce it to its one-third. The result is then increased by one-third, and I get the number 12.
10. 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?
11. Expression Solve for a specified variable: P=a+4b+3c, for a
12. A man A man spends 5/9 of his money on rent, and 5/16 of the remainder on electricity. If the final balance remaining is 550 find how much was spent on rent
13. If you If you travel to work 22 days and it takes 29.2 minutes, how many minutes will it take to travel to work and back?
14. Melting point The melting point of mercury is -36°F and its boiling point is 672°F. What is the difference between the boiling point and the melting point?
15. Two angles The triangles ABC and A'B'C 'are similar. In the ABC triangle, the two angles are 25° and 65°. Explain why in the triangle A'B'C 'is the sum of two angles of 90 degrees.
16. Water 31 Richard takes 3 1/6 liters of water before noon and 2 3/5 liters of water after noon. How many litres of water does Richard consume a day ?
17. Last page Two consecutive sheets dropped out of the book. The sum of the numbers on the sides of the dropped sheets is 154. What is the number of the last page of the dropped sheets?
18. Regrouping Subtract mixed number with regrouping: 11 17/20- 6 19/20
19. Andre Andre, Thomas, and Ivan split 88 postage stamps in a 2:5:4 ratio. How much did Thomas get?
20. Twenty Twenty rabbits are put in 4 cells so that there are different number of rabbits in each cell contains at least 3 rabbits. What is the largest possible number of rabbits in one cell

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