Question

5м 15см×8=? 12дм 3см×10=?

Answer 1

5м 15 см * 8 = 5,15 * 8 = 41,2 м
12дм 3 см * 10 = 12,3 * 10 = 123 дм

Answer 2

1)1м=100см
515см×8=4120см=41м 20см
2)1дм=10см
123см×10=1230см=123дм

Answer 3

To solve these problems, we can convert all the measurements to the same unit (either centimeters or decimeters) and then perform the multiplication.

First, let's convert 5м 15см to centimeters:

5м = 5 x 100см = 500см 15см = 15см

So, 5м 15см = 500см + 15см = 515см

Now we can multiply 515см by 8:

515см × 8 = 4120см

Therefore, 5м 15см × 8 = 4120см.

Next, let's convert 12дм 3см to decimeters:

12дм = 12дм x 10см/дм = 120см 3см = 3см

So, 12дм 3см = 120см + 3см = 123см

Now we can multiply 123см by 10:

123см × 10 = 1230см

Since 1дм = 10см, we can express the result in decimeters as follows:

1230см = 123дм

Therefore, 12дм 3см × 10 = 1230см or 123дм.