Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 926 · 40 questions

The fast method (Spot the trick): A 7, 8 or 9 in the ones place → round and fix. × 4, 8, 5, 50 or 15 → doubling or halving tricks. ÷ 5, 25 or 50 → double first. A percentage → start from 10%. Checking or estimating → nines or rounding.

1. 1.16 × 15 =
2. 2.₹26.25 + ₹36.85 =
3. 3.23 × 5 =
4. 4.Best estimate of 81 × 78? (a) 12800 (b) 6400 (c) 64000 (d) 640
5. 5.₹36.10 − ₹10.90 =
6. 6.Check with nines: 377 + 294 = 671. Correct or wrong? (a) correct (b) wrong
7. 7.485 + 37 =
8. 8.1150 ÷ 50 =
9. 9.83 − 26 =
10. 10.39² =
11. 11.492 − 47 =
12. 12.16 × 18 =
13. 13.Check with nines: 491 + 774 = 1260. Correct or wrong? (a) wrong (b) correct
14. 14.Check with nines: 323 + 911 = 1234. Correct or wrong? (a) correct (b) wrong
15. 15.3 + 7 + 8 + 5 =
16. 16.16 × 15 =
17. 17.Check with nines: 58 × 62 = 3596. Correct or wrong? (a) correct (b) wrong
18. 18.Best estimate of 39 × 38? (a) 3200 (b) 16000 (c) 160 (d) 1600
19. 19.49² =
20. 20.Best estimate of 301 × 9? (a) 270 (b) 27000 (c) 2700 (d) 5400
21. 21.200 ÷ 5 =
22. 22.550 ÷ 50 =
23. 23.15 × 19 =
24. 24.60 × 5 =
25. 25.28 × 15 =
26. 26.214 − 57 =
27. 27.95 + 29 =
28. 28.570 ÷ 5 =
29. 29.79² =
30. 30.399 + 88 =
31. 31.Check with nines: 69 × 44 = 3029. Correct or wrong? (a) wrong (b) correct
32. 32.10% of 700 =
33. 33.235 − 47 =
34. 34.Best estimate of 299 × 7? (a) 4200 (b) 210 (c) 21000 (d) 2100
35. 35.71 × 5 =
36. 36.50 + 82 + 89 + 82 =
37. 37.Best estimate of 301 × 3? (a) 90 (b) 1800 (c) 900 (d) 9000
38. 38.1% of 340 =
39. 39.25 × 50 =
40. 40.49 + 28 + 58 + 16 =

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