Pour 50 liters of water into a square empty pool with an edge length of 5 decimeters______ Decimeter

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• 1. Fill a square water tank 40 cm long with water, and then pour the water into a cuboid water tank 80 cm long and 20 cm wide. How deep is the water
• 2. A cube 40 cm long is filled with water, and then a little water is poured into a cuboid pool 80 cm long and 20 cm wide. How deep is the water
• 3. There is a cube iron block with an edge length of 80 cm. Now we need to melt it into a cuboid with a cross-section area of 2000 square cm. How long is it
• 4. A cuboid pool, 4 meters long and 3.5 meters wide, can hold 10.85 cubic meters of water. How deep is the pool?
• 5. The bottom of a rectangular tank is 8 decimeters long and 4 decimeters wide. It is known that there is 80 liters of water in the tank. What is the depth of water in the tank?
• 6. The bottom of a cuboid pool is 12 decimeters long and 6 decimeters wide. If you want to inject 2 decimeters of water into the pool, how many liters of water do you need? Tell the algorithm
• 7. 156 liters of water were injected into a cuboid pool, and the water surface rose by 4 decimeters. The bottom area of the pool was calculated
• 8. A cuboid pool, the bottom is 12 decimeters long and 6 decimeters wide. If you want to inject 2 decimeters of water into the pool, how many liters of water do you need?
• 9. 15 km = cm = mm; 3.2 μ M = m; 880 mm = nm; 250 L = cm2; 0.5 m3 = cubic decimeter = cubic centimeter; 3 hours = seconds = minutes
• 10. How many rational terms are there in the expansion of binomial (x ^ 2 + 1 / x) ^ 10 (x ^ 2 + 1 / x ^ 10 is not connected in the middle under the third root sign.)
• 11. Then, the wastewater from a cuboid wastewater tank with a length of 2 × 10 & # 179; DM, a width of 4 × 10 & # 178; DM and a height of 80dm is injected into a cube reservoir. It is known that the edge length of the cube reservoir is 5x10 & # 178; DM. Can these wastewater be injected into the reservoir for purification at one time? Explain the reason
• 12. Unit conversion 0.2m=____ CM=____ Mm 50g=______ Kg 0.2 H=____ Minutes=_____ 50 ml per second=______ cubic metre
• 13. 0.46 m3 = how many ML
• 14. 7.8dm = M = mm 70 micron = M = mm 500 cubic centimeter = cubic meter 0.5 liter = cubic decimeter = cubic meter 0,5 ton = kilogram 10-10m nano micro meter
• 15. How much is the negative quarter to the power of 2011 multiplied by the power of 16 to the power of 1005
• 16. Simple calculation (- 1 / 4) of 2011 power * 16 of 1005 power
• 17. Fast! A quarter of 1005 times minus two of 2011,
• 18. What is the mass of 1kg water when it forms ice? If the density of ice is 0.9 × 10 cubic meter, the volume of 1kg water when it forms ice will be larger cubic metre?
• 19. It is known that the density of ice is 0.9x10 cubic kilogram per cubic meter. If the volume of water is 36 cubic decimeters, the volume of ice can be calculated after it forms ice
• 20. The volume of 450 cubic centimeters of water ice (ice density is 0.9 times 10 cubic kilograms per cubic meter) to find the volume of ice