6.6 ml 0.066 l =66 ml 0.066 cubic meter =66 l 6.6 cubic decimeter =6.6 l 660 cubic centimeter =0.66 l.

0.066 cubic meter > 6.6 cubic decimeter > 660 cubic centimeter > 0.066 liter > 6.6 ml

2, 73 means: a.7+7+7b.7x7x7x7c.7x3.

This question is very strange:

If it is 7 3s, it means 7x3.

If it's 7? Expressed as 7x7x7.

3. Make a cuboid fruit packing box with cardboard and cover it with transparent hard plastic. It is 4.5 meters long, 3.2 meters wide and 0.8 meters high. How many square decimeters of cardboard and transparent hard plastic should be used at least?

Transparent hard plastic: 4.5x3.2= 14.4 square decimeter.

Cardboard: (4.5+3.2+4.5+3.2) x 0.8+4.5x3.2 = 26.72 square decimeter.

4. The base of the square sculpture is a cuboid, 4.6m long, 3m wide and1.6m high. Q: If the base is plastered with marble slabs, how many square meters of marble slabs do you need at least?

2x(4.6x 1.6+3x 1.6)= 24.32㎡。

The picture below shows a long-haired wood with a cubic cross section. Its length is 15 decimeter. After cutting along the dotted line, its surface area increased by 32 square centimeters. What is the volume of this piece of wood?

No charts

6. The total length of a cuboid is 64 decimeters, its length is three times its width, and its height and width are equal. What is the surface area and volume of this cuboid?

Length+width+height =64÷4= 16

Width = height =16÷ (3+1+1) = 3.2.

Length =3.2x3=9.6

Surface area: 2x (3.2x3.2+9.6x3.2+9.6x3.2) =143.36 square decimeter.

Volume: 3.2x3.2x9.6=98.304 cubic decimeter