=3.3*6.2+6.7*6.2

=(3.3+6.7)*6.2

= 10*6.2

=62

2.(3.6*7.5* 1.2)/( 1.5*24*0. 18)

=(3.6/0. 18)*(7.5/ 1.5)*( 1.2/24)

=20*5* 1/20

=5

There is a piece of wood, 2.4 meters long and square in cross section. If cut into three cuboids parallel to the cross section, the surface area will increase by 6 cubic decimeters. How many square meters is there with this kind of wood?

6 ÷ 4 = 1.5 (square decimeter) = 0.0 15 (square meter)

0.015× 2.4×100 = 3.6 (m3)

A: A * * * has 3.6 cubic meters.

A courier wrapped a cubic carton with a roll of 5 cm adhesive tape. The left and right sides cross into a cross, and only one tape covers the carton area of1350m2. What is the volume of this cubic carton?

(1350-5× 5× 2) ÷ 5 = 260 (cm)

260 ÷ 8 = 32.5 cm

32.5× 32.5× 32.5 = 34328.125 (cubic centimeter)