Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 420 · 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. 1.14 + 60 + 40 + 13 =
2. 2.90 × 50 =
3. 3.7 + 3 + 5 + 4 =
4. 4.Best estimate of 402 × 5? (a) 200 (b) 4000 (c) 2000 (d) 20000
5. 5.16 × 16 =
6. 6.119 + 27 =
7. 7.₹43.65 − ₹39.05 =
8. 8.300 ÷ 5 =
9. 9.562 − 28 =
10. 10.182 + 49 =
11. 11.Check with nines: 278 + 666 = 936. Correct or wrong? (a) correct (b) wrong
12. 12.24 × 8 =
13. 13.39² =
14. 14.Check with nines: 19 × 96 = 1824. Correct or wrong? (a) wrong (b) correct
15. 15.₹40.25 − ₹9.90 =
16. 16.98 × 5 =
17. 17.15 × 12 =
18. 18.44 × 4 =
19. 19.11 + 25 + 71 + 22 =
20. 20.75 − 59 =
21. 21.500 ÷ 5 =
22. 22.32 × 15 =
23. 23.15% of 470 =
24. 24.28 × 4 =
25. 25.85 ÷ 5 =
26. 26.64 × 50 =
27. 27.46 + 55 + 18 + 40 =
28. 28.84 × 5 =
29. 29.31² =
30. 30.55 × 50 =
31. 31.60 × 15 =
32. 32.Best estimate of 52 × 49? (a) 25000 (b) 2500 (c) 5000 (d) 250
33. 33.Best estimate of 18 × 59? (a) 12000 (b) 120 (c) 2400 (d) 1200
34. 34.295 + 97 =
35. 35.19² =
36. 36.173 − 67 =
37. 37.₹66.10 + ₹31.10 =
38. 38.74 × 50 =
39. 39.10 × 15 =
40. 40.Check with nines: 71 × 83 = 5893. Correct or wrong? (a) correct (b) wrong

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