Question

4дм7см+1м1мм-21см8мм=

Answer 1

Ответ: 125,7

Пошаговое объяснение:

Answer 2

To solve the given arithmetic expression, we need to add the given measurements:

4 dm 7 cm + 1 m 1 mm - 21 cm 8 mm

First, let's convert all the measurements to the same unit. We'll convert everything to centimeters (cm) for consistency.

4 dm 7 cm = (4 * 10 cm) + 7 cm = 40 cm + 7 cm = 47 cm 1 m 1 mm = (1 * 100 cm) + (1 * 0.1 cm) = 100 cm + 0.1 cm = 100.1 cm 21 cm 8 mm = 21 cm + (8 * 0.1 cm) = 21 cm + 0.8 cm = 21.8 cm

Now, we can add the converted measurements:

47 cm + 100.1 cm - 21.8 cm = 125.3 cm

Therefore, the result of the expression 4dm7cm + 1m1mm - 21cm8mm is 125.3 cm.