Question

78 тонн - 789 кг 23 км - 7600 м 769 м - 670 мм 4531 м + 78643 см

Answer 1

119284 я все переводила но пример странный но я в 3 классе я старалась

Answer 2

To solve the given expressions, we need to perform the necessary conversions between units where applicable. Let's go step by step:

1. 78 tonnes - 789 kg: To subtract these, we need to convert tonnes to kilograms: 1 tonne = 1000 kg So, 78 tonnes = 78 * 1000 kg = 78000 kg Now, subtract 789 kg from 78000 kg: 78000 kg - 789 kg = 77211 kg

2. 23 km - 7600 m: To subtract these, we need to convert kilometers to meters: 1 km = 1000 m So, 23 km = 23 * 1000 m = 23000 m Now, subtract 7600 m from 23000 m: 23000 m - 7600 m = 15400 m

3. 769 m - 670 mm: To subtract these, we need to convert millimeters to meters: 1 m = 1000 mm So, 670 mm = 670 / 1000 m = 0.67 m Now, subtract 0.67 m from 769 m: 769 m - 0.67 m = 768.33 m

4. 4531 m + 78643 cm: To add these, we need to convert centimeters to meters: 1 m = 100 cm So, 78643 cm = 78643 / 100 m = 786.43 m Now, add 4531 m to 786.43 m: 4531 m + 786.43 m = 5317.43 m

So, the results of the given expressions are as follows:

1. 78 tonnes - 789 kg = 77211 kg
2. 23 km - 7600 m = 15400 m
3. 769 m - 670 mm = 768.33 m
4. 4531 m + 78643 cm = 5317.43 m