Question

1000см:4 1м+200дм 100мм+10см 1000см+100дм 1м-1дм 10000мм:50 100дм+100см 1000см:20

Answer 1

1) 250см
2) 3м
3) 20см или 200мм
4) 20м или 2000см или 200дм
5) 90см или 9дм
6) 200мм
7) 11м или 110дм или 1100см
8) 50см

Answer 2

Let's solve each of the expressions step by step:

1. 1000 cm : 4 To divide 1000 cm by 4, we get: 1000 cm / 4 = 250 cm

2. 1 m + 200 dm To add 1 meter and 200 decimeters, we first need to convert decimeters to centimeters: 1 meter = 100 cm (since 1 meter = 10 decimeters and 1 decimeter = 10 cm) 200 dm = 2000 cm (since 1 decimeter = 10 cm) Now, add them together: 1 m + 200 dm = 100 cm + 2000 cm = 2100 cm

3. 100 mm + 10 cm To add millimeters and centimeters, we first need to convert millimeters to centimeters: 100 mm = 10 cm (since 1 centimeter = 10 millimeters) Now, add them together: 100 mm + 10 cm = 10 cm + 10 cm = 20 cm

4. 1000 cm + 100 dm To add centimeters and decimeters, we first need to convert decimeters to centimeters: 100 dm = 1000 cm (since 1 decimeter = 10 centimeters) Now, add them together: 1000 cm + 100 dm = 1000 cm + 1000 cm = 2000 cm

5. 1 m - 1 dm To subtract 1 decimeter from 1 meter, we need to convert the meter to centimeters: 1 meter = 100 cm (since 1 meter = 10 decimeters and 1 decimeter = 10 cm) Now, subtract them: 1 m - 1 dm = 100 cm - 10 cm = 90 cm

6. 10000 mm : 50 To divide 10000 millimeters by 50, we get: 10000 mm / 50 = 200 mm

7. 100 dm + 100 cm We don't need to convert anything since both are in centimeters: 100 dm + 100 cm = 1000 cm + 100 cm = 1100 cm

8. 1000 cm : 20 To divide 1000 centimeters by 20, we get: 1000 cm / 20 = 50 cm

So, the results are:

1. 1000 cm : 4 = 250 cm
2. 1 m + 200 dm = 2100 cm
3. 100 mm + 10 cm = 20 cm
4. 1000 cm + 100 dm = 2000 cm
5. 1 m - 1 dm = 90 cm
6. 10000 mm : 50 = 200 mm
7. 100 dm + 100 cm = 1100 cm
8. 1000 cm : 20 = 50 cm