Question

2м58 см+3м ; 4дм 5см+7 дм; 16см-32 дм;6см-5дм 9см.

Answer 1

2м58см+3м=5м58см
4дм5см+7дм=11дм5см
32дм - 16см=31дм4см
5дм9см-6см=5дм3см

Answer 2

Let's perform the calculations step by step:

1. 2m 58cm + 3m: We need to add the meters separately from the centimeters: 2m + 3m = 5m 58cm = 58cm (since there are no meters to combine with) Therefore, 2m 58cm + 3m = 5m 58cm.

2. 4dm 5cm + 7dm: We need to add the decimeters separately from the centimeters: 4dm + 7dm = 11dm 5cm = 5cm (since there are no decimeters to combine with) Therefore, 4dm 5cm + 7dm = 11dm 5cm.

3. 16cm - 32dm: Convert 32dm to centimeters (1dm = 10cm): 32dm = 32 * 10cm = 320cm Now, subtract: 16cm - 320cm = -304cm Note: The result is negative because the initial value in centimeters (16cm) is smaller than the value in centimeters after converting 32dm to cm (320cm).

4. 6cm - 5dm 9cm: Convert 5dm to centimeters (1dm = 10cm): 5dm = 5 * 10cm = 50cm Now, subtract: 6cm - (50cm + 9cm) = 6cm - 59cm = -53cm Note: The result is negative because the initial value in centimeters (6cm) is smaller than the value in centimeters after converting 5dm to cm (59cm).

Summary of results:

1. 2m 58cm + 3m = 5m 58cm
2. 4dm 5cm + 7dm = 11dm 5cm
3. 16cm - 32dm = -304cm
4. 6cm - 5dm 9cm = -53cm