Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 658 · 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. 1.72 + 72 + 26 + 19 =
2. 2.28 × 8 =
3. 3.Check with nines: 52 × 29 = 1500. Correct or wrong? (a) wrong (b) correct
4. 4.9 × 15 =
5. 5.5% of 100 =
6. 6.₹17.15 − ₹13.15 =
7. 7.148 × 4 =
8. 8.8 + 1 + 6 + 7 + 3 =
9. 9.50% of 400 =
10. 10.484 − 26 =
11. 11.404 + 98 =
12. 12.690 ÷ 5 =
13. 13.4 + 2 + 3 + 7 + 6 =
14. 14.1% of 180 =
15. 15.98 + 67 =
16. 16.77 × 50 =
17. 17.910 ÷ 5 =
18. 18.Check with nines: 75 × 19 = 1432. Correct or wrong? (a) correct (b) wrong
19. 19.49² =
20. 20.Best estimate of 78 × 18? (a) 160 (b) 3200 (c) 16000 (d) 1600
21. 21.92 − 16 =
22. 22.Check with nines: 89 × 33 = 2937. Correct or wrong? (a) correct (b) wrong
23. 23.4 + 5 + 4 + 6 + 6 =
24. 24.Check with nines: 767 + 291 = 1058. Correct or wrong? (a) correct (b) wrong
25. 25.64 × 4 =
26. 26.82 × 50 =
27. 27.3 + 4 + 6 + 1 =
28. 28.Best estimate of 79 × 59? (a) 48000 (b) 4800 (c) 9600 (d) 480
29. 29.89² =
30. 30.23 + 30 + 59 + 19 =
31. 31.31 × 5 =
32. 32.₹90.95 + ₹48.75 =
33. 33.30 + 44 + 13 + 61 =
34. 34.Check with nines: 61 × 69 = 4205. Correct or wrong? (a) wrong (b) correct
35. 35.20 + 47 + 48 + 73 =
36. 36.53 × 15 =
37. 37.49² =
38. 38.121 + 88 =
39. 39.600 ÷ 25 =
40. 40.20 × 15 =

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