Question

. 8 м 7 дм - 3 6 дм 4 см - 414 м 9 дм + 5 дм13 см 7 мм +6 мм3 м - 45 см1 ч — 18 мин​

Answer 1

804

60

1540

14см 3мм

55см

42мин

Answer 2

6дм 4см -4 см =6дм

14м 9дм +5дм=15м 4дм

13см 7мм +6мм= 14см 3мм

3м-45см= 2м 55см

1ч-18мин=42мин

Answer 3

To calculate the given expression, let's break it down step by step:

1. Convert all the measurements to a consistent unit, such as centimeters (cm).

Given expression: 8m 7dm - 3 6dm 4cm - 414m 9dm + 5dm 13cm 7mm + 6mm 3m - 45cm 1ch - 18min

Conversion: 8m = 800cm 7dm = 70cm 3 6dm = 36dm = 360cm 4cm = 4cm 414m = 41400cm 9dm = 90cm 5dm = 50cm 13cm = 13cm 7mm = 0.7cm 6mm = 0.6cm 3m = 300cm 45cm = 45cm 1ch = 2.54cm (1 inch is approximately equal to 2.54 cm) 18min = 18min

Updated expression: 800cm + 70cm - 360cm - 4cm - 41400cm + 90cm + 50cm + 13cm + 0.7cm + 0.6cm + 300cm - 45cm - 2.54cm - 18min

2. Simplify the expression by performing addition and subtraction operations.

Updated expression: (800cm + 70cm - 360cm - 4cm - 41400cm + 90cm + 50cm + 13cm + 0.7cm + 0.6cm + 300cm - 45cm - 2.54cm) - 18min

800cm + 70cm - 360cm - 4cm - 41400cm + 90cm + 50cm + 13cm + 0.7cm + 0.6cm + 300cm - 45cm - 2.54cm = -40840.84cm

3. Convert the final result back to the desired format (meters, decimeters, centimeters).

-40840.84cm = -408.4084m

Therefore, the simplified expression is -408.4084 meters.