Sixth grade, volume 2, new edition of mathematics teaching and basic training, with answers on page 35.36.37.

Face 34: Do it (1) 6 * 5 = 303 * 8 = 24 NO (2) 0.2 * 50 =10 2.5 * 5 =10 Energy 0.2: 2.5 = 4: 50 (3) 6544.

36 sides: 1. Can't 22: 30 = 8:120 ③ can 45:100 =10: 200.

(1) can be 4: 12 = 5: 15 (2) no (3) no (4) can be1/2:1/4 =/kloc-0.

⒊ 50: 10=5: 1

3: 4 = 12: 16 A: It can form a proportion. (2) 3 and 16 are external projects, and 4 and 12 are internal projects.

37 faces: ⒌ 16 *12 = 729 * 9 = 81no ②1.4 * 40 = 48 228 = 481.4: 2 = 28: 40.

⑶ 1/2 * 1/4 = 1/8 1/5 * 8 = 1/8 1/2: 1/5 = 5/8: 65448.

6. Right 54÷45=6/5 72÷60=6/5 72:60=54:45

⒎ (1) Solution:1/2χ =1/5 *1/2χ =10χ =

(3) Solution: 3 χ = 3/4 * 12 χ = 9 ÷ 3 χ = 3 (4) Solution: 54 χ = 36 * 3 χ = 2 χ = 8 * 9 χ = 36.

[6] Solution: 0.25 χ =1.25 *1.6 χ = 8.

⒏ Solution: Let its actual length be χ cm 24.92 ∶ χ =1∶ 24 χ 24 * 24.92 χ = 598.08.

⑵ Solution: Let the length of the model car be y m11.76m =1176cm y:1176 =1:24 24y =/kloc-.