Can you check if my instructions on how to do the washing and the washing-up are correct? Thank you very much.

When you do the washing, you sort the clothes, put them into the washing machine, insert the washing powder into the drawer or plastic container, start the washing machine, wait until the washing is finished, take the clothes out and hang them on the clothes line. Once they are dried, you take them off the clothes line, iron them and put them into the proper drawers or hange them in the wardrobe.
When you do the washing up, you put the dishes into the sink, add the washing-up powder (soap), wash them up, rinse them and dry them. Finally, you put them back in the cupboard.

If you are aiming to write in British English, then keep everything just as you have written (with one correction -- spelling of the word "hang").

If you are aiming to write in American English, then use these substitutes:

washing = wash or laundry
washing powder = laundry detergent
wardrobe = closet
washing up = dishes (or When you wash the dishes...)
washing-up powder = dish soap, dish detergent

Also be aware that many people in the US use clothes dryers rather than a clothes line. Some people use both!

Yes, your instructions for both doing the washing and the washing-up are generally correct. Here's a step-by-step breakdown of each process:

Doing the washing:
1. Sort the clothes: Separate the clothes based on color or fabric type. This helps prevent color bleeding and ensures the clothes are treated appropriately.
2. Load the washing machine: Place the sorted clothes into the washing machine. Be careful not to overload it, as this can prevent proper cleaning and rinsing.
3. Add washing powder or detergent: Check the instructions on the detergent packaging and use the recommended amount. Some machines have a drawer or compartment specifically for adding detergent, while others may require you to place it directly into the drum.
4. Start the washing machine: Select the appropriate washing cycle, temperature, and other desired settings. Then, start the machine to begin the washing process.
5. Wait for the washing cycle to complete: Allow the machine to complete its full cycle, which typically includes washing, rinsing, and spinning to remove excess water.
6. Remove the clothes: Once the washing cycle is finished, take the clothes out of the machine.
7. Hang the clothes to dry: Hang the clothes on a clothesline or use a clothes drying rack. Ensure proper air circulation for efficient drying.
8. Iron and store the clothes: When the clothes are fully dry, iron them if needed and put them away in the appropriate drawers or hang them in the wardrobe.

Doing the washing-up:
1. Gather the dishes: Collect all the dirty dishes and place them in the sink.
2. Add washing-up powder or soap: Place the appropriate amount of washing-up powder or soap onto a sponge or into the sink. The amount will depend on the dish load and the concentration of the detergent.
3. Wash the dishes: Use the soapy sponge or a dishcloth to scrub the dishes, removing any food residue or stains. Pay attention to both the inside and outside of the dishes.
4. Rinse the dishes: Thoroughly rinse the dishes under running water to remove any remaining soap or detergent.
5. Dry the dishes: Use a clean dish towel or a drying rack to air-dry the dishes. If using a towel, ensure it is clean and free from any debris or stains.
6. Put the dishes away: Once the dishes are dry, return them to their respective places in the cupboard or storage area.

It's important to note that different washing machines, detergents, and personal preferences may have slight variations in the exact steps. Always refer to the manufacturer's instructions for your specific washing machine, as well as the recommendations on the detergent packaging.