1. Fold a cube frame with 3 meters of iron wire. The volume of this cube is 1/64 cubic meters.

A = 3/ 12m, V = (3/ 12) 3 = 1/64 (m3).

2. A fraction, the molecule is magnified 4 times and the molecule is shrunk 3 times. After simplification, it is 10, which is 5/6.

10 after simplification, and101and 20/2 before simplification. . . This score is 5/6.

3. The sum of an integer and its reciprocal is 8. 125. This integer is 8. Its reciprocal is 1/8.

8+ 1/8=8. 125