Question

36м2-78м2 45дм2-12см2 1км2-1200м2 221см2-120мм2 5дм3-26см3 116м3-34дм3 32см3-61мм3 41дм3-41см3 78т-789кг 23км-7600м 769м-670мм 4531м+78643см Ответьте пожалуйста

Answer 1

36 м2-78 м2=-42 м2
45 дм2-12 см2=438 см2
1 км2-1200 м2=-200 м2
221 см2-120 мм2= 101 мм2
5 дм3-26 см3= 4974 см3
116 м3-34 дм3= 1126 дм3
32 см3-61 мм3= 3139 мм3
41 дм3-41 см3= 4059 см3
78т-789кг= 7011 кг
23км-7600м= -5300 м
769м-670мм= 7020 мм
4531м+78643см= 83174 см

Answer 2

To simplify the given expressions, let's perform the calculations:

1. 36m^2 - 78m^2 = -42m^2
2. 45dm^2 - 12cm^2 = 45dm^2 - 12cm^2 (We cannot directly subtract different units like decimeters and centimeters.)
3. 1km^2 - 1200m^2 = 1km^2 - 0.12km^2 = 0.88km^2 (Remember that 1km^2 = 1000000m^2)
4. 221cm^2 - 120mm^2 = 221cm^2 - 1.2cm^2 = 219.8cm^2
5. 5dm^3 - 26cm^3 = 5dm^3 - 0.026dm^3 = 4.974dm^3 (Remember that 1dm^3 = 1000cm^3)
6. 116m^3 - 34dm^3 = 116m^3 - 0.034m^3 = 115.966m^3 (Remember that 1m^3 = 1000dm^3)
7. 32cm^3 - 61mm^3 = 32cm^3 - 0.061cm^3 = 31.939cm^3 (Remember that 1cm^3 = 1000mm^3)
8. 41dm^3 - 41cm^3 = 41dm^3 - 0.041dm^3 = 40.959dm^3 (Remember that 1dm^3 = 1000cm^3)
9. 78t - 789kg = 78t - 0.789t = 77.211t (Remember that 1t = 1000kg)
10. 23km - 7600m = 23km - 7.6km = 15.4km (Remember that 1km = 1000m)
11. 769m - 670mm = 769m - 0.67m = 768.33m (Remember that 1m = 1000mm)
12. 4531m + 78643cm = 4531m + 786.43m = 5317.43m (Remember that 1m = 100cm)

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