Question

2М 34см +5м 11см = 2м 3дм 4 см +1м 4дм 4 см 45дм +3м 3см = 3м 5дм 9 см -1м 4дм 4 см 67дм 5 см -3м 2 см 6м 9дм 7 см - 2м 45см

Answer 1

1) 250 см
2)378 см
3)753 см
4)215 см
5)373 см
6)452 см

Answer 2

Let's perform the calculations step by step:

1. Adding 2m 34cm and 5m 11cm: 2m + 5m = 7m 34cm + 11cm = 45cm Therefore, 2m 34cm + 5m 11cm = 7m 45cm

2. Adding 2m 3dm 4cm and 1m 4dm 4cm: 2m + 1m = 3m 3dm + 4dm = 7dm 4cm + 4cm = 8cm Therefore, 2m 3dm 4cm + 1m 4dm 4cm = 3m 7dm 8cm

3. Adding 45dm and 3m 3cm: 3m = 3m 45dm = 4m 5dm 4m + 3m = 7m 5dm + 3cm = 5dm + 0.3m (since 1dm = 0.1m) 7m + 0.3m = 7.3m Therefore, 45dm + 3m 3cm = 7.3m

4. Subtracting 1m 4dm 4cm from 3m 5dm 9cm: 3m - 1m = 2m 5dm - 4dm = 1dm 9cm - 4cm = 5cm Therefore, 3m 5dm 9cm - 1m 4dm 4cm = 2m 1dm 5cm

5. Subtracting 3m 2cm from 67dm 5cm: 67dm = 6m 7dm 6m - 3m = 3m 7dm - 2cm = 6dm + 0.2m (since 1dm = 0.1m) 3m + 0.2m = 3.2m Therefore, 67dm 5cm - 3m 2cm = 3.2m

6. Subtracting 2m 45cm from 6m 9dm 7cm: 6m - 2m = 4m 9dm - 0dm = 9dm 7cm - 45cm = -38cm We have -38cm, but we cannot have negative values in this context. So, we need to borrow 1dm (which is equal to 0.1m) from 9dm to add to the cm: 9dm - 1dm = 8dm 7cm + 10cm = 17cm Therefore, 6m 9dm 7cm - 2m 45cm = 4m 8dm 17cm

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