Question

Гена отпилил одну дощечку длиной 1дм а вторую на 4см короче Какова общая длина двух дощечек?

Answer 1

1 дм = 10 см 
10 - 4 = 6 см длина второй дощечки
10 + 6 = 16 см  длина двух дощечек 

Answer 2

Calculation of the Total Length of the Two Boards

To find the total length of the two boards, we need to add the length of the first board to the length of the second board.

Given: - Length of the first board: 1 dm - Length of the second board: 4 cm shorter than the first board

To add the lengths, we need to convert the lengths to the same unit. Let's convert the length of the first board from decimeters (dm) to centimeters (cm).

1 decimeter (dm) = 10 centimeters (cm)

So, the length of the first board in centimeters is: 1 dm * 10 cm/dm = 10 cm

Now, let's subtract 4 cm from the length of the first board to find the length of the second board.

Length of the second board = Length of the first board - 4 cm Length of the second board = 10 cm - 4 cm = 6 cm

Finally, to find the total length of the two boards, we add the length of the first board and the length of the second board.

Total length of the two boards = Length of the first board + Length of the second board Total length of the two boards = 10 cm + 6 cm = 16 cm

Therefore, the total length of the two boards is 16 centimeters.