Question

1)5 м - 2 м 1 дм+4 м 8 дм= 2)9 дм 1 см -53 см+3 дм 7 см= 3)10 м - 80 дм+ 6 м 3 дм =

Answer 1

50 дм-21 дм+48 дм=77дм
91см-53см+37см=75см
100дм-80дм+63дм=83дм

Answer 2

To perform these arithmetic operations, we need to ensure that all the measurements are in the same units before adding or subtracting them. Let's first convert all the measurements to decimeters (dm) so that we can easily perform the calculations:

1. 5 m - 2 m 1 dm + 4 m 8 dm Convert 5 m to dm: 5 m * 10 dm/m = 50 dm Convert 2 m 1 dm to dm: 2 m * 10 dm/m + 1 dm = 21 dm Convert 4 m 8 dm to dm: 4 m * 10 dm/m + 8 dm = 48 dm

Now, the expression becomes: 50 dm - 21 dm + 48 dm Combine like terms: 50 dm - 21 dm + 48 dm = 77 dm

Answer: 77 decimeters (dm)

2. 9 dm 1 cm - 53 cm + 3 dm 7 cm Convert 9 dm 1 cm to cm: 9 dm * 10 cm/dm + 1 cm = 91 cm Convert 3 dm 7 cm to cm: 3 dm * 10 cm/dm + 7 cm = 37 cm

Now, the expression becomes: 91 cm - 53 cm + 37 cm Combine like terms: 91 cm - 53 cm + 37 cm = 75 cm

Answer: 75 centimeters (cm)

3. 10 m - 80 dm + 6 m 3 dm Convert 10 m to dm: 10 m * 10 dm/m = 100 dm Convert 6 m 3 dm to dm: 6 m * 10 dm/m + 3 dm = 63 dm

Now, the expression becomes: 100 dm - 80 dm + 63 dm Combine like terms: 100 dm - 80 dm + 63 dm = 83 dm

Answer: 83 decimeters (dm)