Penjelasan dengan langkah-langkah:

1. 6½+4½+3/10=

31/5+9/2+3/10

62/10+45/10+3/10

110/10 = 11 (C)

2. 20 - 3 1/6 - 12⅔

20/1-19/6-38/6

120/6-19/6-76/6

25/6 = 4 1/6 (B)

3. ½×5 =

½×5/1 =5/2 (B)

4. 3⅔×1¼

11/3 × 5/4

55/12= 4 7/12(B)

5. 24/5:4/10

24/5 × 10/4

12(C)

6. (14/6 : 2) : 2/3

(14/6 : 2/1) : 2/3

(14/6× ½) × 3/2

7/6×3/2

7/4 = 1¾ (B)

7. 2: (3⅓:1¾)

2: (10/3:7/4)

2: (10/7×4/7)

2: 40/21

2 × 21/40

21/20 = 1 1/20(D)

8. 3/5×2/4 = 6/20 (C)

9. 37/7×⅚

185/42 = 4 17/42(B)

10. 8/2÷4/7

8/2× 7/4

7(D)

11. 1 hari: 24 jam

24 jam: 1440 menit

9 jam: 540 menit

1440 menit - 540 menit = 900 (A)

12. 36km = 36000m

4hm = 400m

25m

________________+

36425 (A)

13. 2,2 km + 36 m =

(2,2 × 100000) + (36×100)

220000+3600

223600 (B)

14. 51 km/jam =....... m/menit

51×1000 / 60

51000/60 = 850 (C)

15. 3jam + 45menit + 240 detik =.... menit

(3×60)menit + 45menit + (240:60)menit

180 + 45 + 4

229 menit (B)

16. (850×1/1000)km /(1×1/60)jam

850/1000 km : 1/60 jam

850/1000 × 60/1 km/jam

51000/1000 km/jam

51 km/jam (D)

17. 3 liter /(1/60) menit

3×60 liter/menit

180 liter/menit