Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 551 · 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.Check with nines: 561 + 361 = 922. Correct or wrong? (a) wrong (b) correct
2. 2.52 − 48 =
3. 3.550 ÷ 50 =
4. 4.700 ÷ 50 =
5. 5.264 + 47 =
6. 6.19 × 15 =
7. 7.7 + 6 + 7 + 4 =
8. 8.1300 ÷ 50 =
9. 9.Best estimate of 28 × 18? (a) 60 (b) 1200 (c) 6000 (d) 600
10. 10.193 + 88 =
11. 11.Best estimate of 41 × 31? (a) 12000 (b) 120 (c) 2400 (d) 1200
12. 12.1025 ÷ 25 =
13. 13.36 × 8 =
14. 14.50% of 420 =
15. 15.Check with nines: 29 × 22 = 642. Correct or wrong? (a) correct (b) wrong
16. 16.10% of 570 =
17. 17.700 ÷ 50 =
18. 18.42 × 8 =
19. 19.330 ÷ 5 =
20. 20.1050 ÷ 25 =
21. 21.2 + 2 + 3 + 8 =
22. 22.22 + 31 + 29 + 17 =
23. 23.18 × 8 =
24. 24.423 + 17 =
25. 25.15% of 230 =
26. 26.70 × 5 =
27. 27.₹93.25 − ₹14.55 =
28. 28.175 − 76 =
29. 29.10% of 870 =
30. 30.Check with nines: 58 × 20 = 1160. Correct or wrong? (a) wrong (b) correct
31. 31.Check with nines: 257 + 273 = 527. Correct or wrong? (a) correct (b) wrong
32. 32.7 + 3 + 4 + 6 + 9 =
33. 33.23 + 64 + 60 + 81 =
34. 34.39 × 15 =
35. 35.58 × 15 =
36. 36.46 × 5 =
37. 37.69² =
38. 38.420 ÷ 5 =
39. 39.50% of 260 =
40. 40.70 + 29 + 37 + 56 =

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