Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 659 · 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. 1.21² =
2. 2.163 − 67 =
3. 3.91² =
4. 4.19² =
5. 5.129 + 49 =
6. 6.₹93.25 − ₹28.25 =
7. 7.79² =
8. 8.5% of 630 =
9. 9.₹59.55 + ₹11.75 =
10. 10.80 + 35 + 11 + 34 =
11. 11.52 − 27 =
12. 12.11 × 16 =
13. 13.15 × 17 =
14. 14.50% of 500 =
15. 15.8 + 9 + 6 + 8 + 1 =
16. 16.19² =
17. 17.71² =
18. 18.₹62.45 − ₹15.05 =
19. 19.9 + 6 + 2 + 1 + 7 =
20. 20.91² =
21. 21.Check with nines: 907 + 938 = 1848. Correct or wrong? (a) correct (b) wrong
22. 22.14 × 50 =
23. 23.10% of 500 =
24. 24.322 + 88 =
25. 25.325 ÷ 5 =
26. 26.332 − 17 =
27. 27.45 + 12 + 50 + 48 =
28. 28.Best estimate of 503 × 4? (a) 20000 (b) 200 (c) 4000 (d) 2000
29. 29.141 + 39 =
30. 30.Check with nines: 236 + 120 = 359. Correct or wrong? (a) wrong (b) correct
31. 31.Check with nines: 72 × 76 = 5478. Correct or wrong? (a) wrong (b) correct
32. 32.Best estimate of 28 × 39? (a) 12000 (b) 1200 (c) 120 (d) 2400
33. 33.14 × 50 =
34. 34.25% of 310 =
35. 35.15 × 17 =
36. 36.Best estimate of 503 × 4? (a) 200 (b) 20000 (c) 4000 (d) 2000
37. 37.₹75.85 + ₹48.30 =
38. 38.₹90.25 − ₹44.40 =
39. 39.2 + 1 + 3 + 8 + 9 =
40. 40.155 × 4 =

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