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Multiplication with a series of 9s
Contributed by: Gettya
  • 1. 299 x 999
A) 299,711
B) 309,711
C) 298,701
D) 289,700
  • 2. 3.62 x 99.9
A) 36,263.8
B) 3,627.48
C) 3,626.38
D) 361.638
  • 3. 18 x 9.9
A) 17.82
B) 181.2
C) 18.92
D) 178.2
  • 4. 740 x 99
A) 74,036
B) 73,036
C) 73,260
D) 74,260
  • 5. 19.1 x 9,990
A) 19,190
B) 1,908,090
C) 19,080.9
D) 190,809
  • 6. 129 x 99.9
A) 12,887.1
B) 12,998.1
C) 129,981
D) 128,871
  • 7. 340 x 990
A) 33,660
B) 34,760
C) 327,000
D) 336,600
  • 8. 9.99 x 99.9
A) 999.111
B) 998.001
C) 99.801
D) 988.001
  • 9. 962 x 9,990
A) 9,629,000
B) 9,610,380
C) 961,038
D) 961,380
  • 10. 529 x 999
A) 528,471
B) 5284.71
C) 529,111
D) 528,121
  • 11. 1.32 x 9.99
A) 131.868
B) 1,318.68
C) 132.968
D) 13.1868
  • 12. 290 x 990
A) 187,100
B) 287,100
C) 291,300
D) 28,710
  • 13. 42.6 x 999
A) 42,557.4
B) 42,668.4
C) 425.74
D) 425.574
  • 14. 85.01 x 9.999
A) 850,014.99
B) 85.1499
C) 840.149
D) 850.01499
  • 15. 7,070 x 9,999
A) 70,629,300
B) 69,701,300
C) 70,692,930
D) 707,692, 300
  • 16. 46 x 99
A) 4,554
B) 4,799
C) 4,054
D) 4,664
  • 17. 816.2 x 999.9
A) 816,2816.8
B) 8,161,183.8
C) 816,118.38
D) 81,611.838
  • 18. 513 x 999
A) 512,487
B) 513,597
C) 512,597
D) 413,413
  • 19. 65.3 x 9,990
A) 652,347
B) 6,523.47
C) 65,234.7
D) 653,345.7
  • 20. 1082 x 99.99
A) 108,918
B) 108,189.18
C) 1,082,918
D) 1,081,891.8
  • 21. 38 x 9,900
A) 376,200
B) 38,620
C) 389,600
D) 39,200
  • 22. 13.9 x 99.9
A) 13,886.1
B) 13,997.1
C) 1,388.61
D) 138.886
  • 23. 120 x 9.99
A) 1,198.8
B) 1,188
C) 119.880
D) 11,988.0
  • 24. 24,639 x 99,999
A) 2,363,865,329
B) 246,387,536
C) 23,638,631
D) 2,463,875,361
  • 25. 0.327 x 0.999
A) 3.2673
B) 0.326673
C) 326.673
D) 32.6673
  • 26. 80 x 0.99
A) 7.92
B) 79.2
C) 80.19
D) 79.02
  • 27. 0.61 x 0.099
A) 6.039
B) 60.39
C) 0.06039
D) 0.6039
  • 28. 828 x 0.999
A) 827.172
B) 8,271.72
C) 82,717.2
D) 828.282
  • 29. 123,540 x 9.9999
A) 1,235,398.7646
B) 1,235,387.646
C) 123,538.7646
D) 12,353,876.46
  • 30. 6,540 x 0.999
A) 6,533.46
B) 65,393.346
C) 6,540.60
D) 6,539.3346
  • 31. 816 x 0.999
A) 8,151.84
B) 815.184
C) 81,629.4
D) 81,518.4
  • 32. 75 x 0.099
A) 74.25
B) 7.425
C) 7.535
D) 84.25
  • 33. 334 x 9.99
A) 3,336.66
B) 334.776
C) 3,347.76
D) 333.666
  • 34. 989 x 0.0999
A) 98.8011
B) 988.011
C) 989.121
D) 9,880.11
  • 35. 52,525 x 99.999
A) 52,524,474.75
B) 5,252,558.585
C) 42,524.475
D) 5,252,447.475
  • 36. 50 x 0.0099
A) 4.95
B) 4.5
C) 0.495
D) 0.0495
  • 37. 130 x 9.99
A) 129.87
B) 1,298.7
C) 12,987.1
D) 1,287.0
  • 38. 472 x 9,990
A) 472,638
B) 471,528
C) 4,715,280
D) 47,152.80
  • 39. 69.3 x 999
A) 69,230.7
B) 692,307
C) 6,923.07
D) 69,341.7
  • 40. 2.50 x 0.099
A) 0.2475
B) 0.2585
C) 2.475
D) 0.02475
  • 41. 499 x 999
A) 4,985,510
B) 499,611
C) 4,996,511
D) 498,501
  • 42. 500 x 0.99
A) 4.95
B) 49.5
C) 454.5
D) 495
  • 43. 9780 x 9.99
A) 97,790.22
B) 977,022
C) 97,702.2
D) 9,770.22
  • 44. 2040 x 99.9
A) 203,979.6
B) 2,037.96
C) 20,379.6
D) 203,796
  • 45. 679 x 0.999
A) 6,783.21
B) 67.8321
C) 679.431
D) 678.321
  • 46. 608 x 99,900
A) 6,073,920
B) 60,849.2
C) 60,739,200
D) 607,392
  • 47. 600 x 999
A) 599,400
B) 59,940
C) 589,411
D) 589,400
  • 48. 800 x 9.99
A) 791.12
B) 799.2
C) 7,992
D) 79.92
  • 49. 7300 x 999
A) 7,292,700
B) 7,399,370
C) 7,292.7
D) 72,927.0
  • 50. 36 x 0.0099
A) 35.64
B) 3.664
C) 0.3564
D) 3.564
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