Question

Вычислите 3км 5см - 6м 5дм? вариантыответов 1) 299355см,2)29355см, 3)299400см, 4)2355см2. Купили четыре куска ткани 2470см, 24007мм,247дм и 25м. Какой из них наибольшей длины? Варианты 2470см, 24007 мм,247дм, 25м?3.Укажи чило 5 миллиардов 2 миллиона 20? Варианты 500220, 5002000020, 550020,500020020?4. в каком числе 156 единиц 4 класса, 33 единицы 3 класса,9 единиц 1 класса? варианты 156339, 156033009, 1560330009, 156033000009?5. В каой записи допущена ошибка? 345606см=3км456м06см, 340000см2=3400м2, 5647кг=5т6ц47кг?

Answer 1

1) 1
2)25м
3)5002000020
4)156339
5)340000см2=3400м2 

Answer 2

1. 3км=300000см,6м=600см,5дм=50см300005см-650см=299355смответ:299355см

Answer 3

Calculation 1: Вычислите 3км 5см - 6м 5дм

To calculate the subtraction of 3 kilometers 5 centimeters from 6 meters 5 decimeters, we need to convert all the measurements to the same unit. Let's convert everything to centimeters:

3 kilometers = 3,000 meters = 300,000 centimeters 5 centimeters = 5 centimeters 6 meters = 600 centimeters 5 decimeters = 50 centimeters

Now, we can subtract:

(300,000 cm + 5 cm) - (600 cm + 50 cm) = 300,005 cm - 650 cm = 299,355 cm

Therefore, the correct answer is 299,355 cm. (Option 1) [[1]]

Calculation 2: Какой из них наибольшей длины?

To determine which of the four fabric pieces is the longest, we need to compare their lengths. Let's convert all the measurements to centimeters for easier comparison:

2470 cm 24007 mm = 2400.7 cm (1 mm = 0.1 cm) 247 dm = 2470 cm (1 dm = 10 cm) 25 m = 2500 cm (1 m = 100 cm)

Comparing the lengths, we can see that the fabric piece with a length of 2400.7 cm (24007 mm) is the shortest, while the fabric piece with a length of 2500 cm (25 m) is the longest.

Therefore, the fabric piece with a length of 25 m is the longest. (Option 25m) [[2]]

Calculation 3: Укажи число 5 миллиардов 2 миллиона 20

To write the number 5 billion 2 million 20, we need to add up the values of each part:

5 billion = 5,000,000,000 2 million = 2,000,000 20 = 20

Adding them together:

5,000,000,000 + 2,000,000 + 20 = 5,002,000,020

Therefore, the correct number is 5,002,000,020. (Option 5002000020) [[3]]

Calculation 4: В каком числе 156 единиц 4 класса, 33 единицы 3 класса, 9 единиц 1 класса?

To write the number with 156 units in the 4th class, 33 units in the 3rd class, and 9 units in the 1st class, we need to place the numbers in their respective places:

156 units in the 4th class = 156,000 33 units in the 3rd class = 33,000 9 units in the 1st class = 9

Adding them together:

156,000 + 33,000 + 9 = 189,009

Therefore, the correct number is 189,009. (Option 156033009) [[4]]

Calculation 5: В какой записи допущена ошибка?

Let's analyze each equation to identify any errors:

1. 345606 cm = 3 km 456 m 06 cm This equation is correct. No error.

2. 340000 cm^2 = 3400 m^2 This equation is incorrect. The conversion from square centimeters to square meters is not correct. To convert square centimeters to square meters, we need to divide by 10,000 (1 m^2 = 10,000 cm^2). The correct conversion should be: 340000 cm^2 = 34 m^2

3. 5647 kg = 5 t 6 c 47 kg This equation is correct. No error.

Therefore, the equation with the error is 340000 cm^2 = 3400 m^2. (Option 340000см2=3400м2) [[5]]

I hope this helps! Let me know if you have any further questions.