This document contains examples of two-digit by one-digit multiplication problems and their solutions. For each problem, it shows breaking the two-digit number into tens and ones, multiplying each place value by the one-digit number, and adding the partial products to get the total solution. There are over 30 such multiplication examples provided as practice for 5th grade mental math skills.

1. 5th Grade
Mental Math
Two Digit by One Digit Multiplication II

2. 70 x 7

3. 490

4. 30 x 7

5. 210

6. 50 x 8

7. 400

8. 20 x 5

9. 100

10. 40 x 7

11. 280

12. 80 x 9

13. 720

14. 60 x 8

15. 480

16. 30 x 9

17. 270

18. 90 x 7

19. 630

20. 70 x 6

21. 420

22. 32 x 4

23. 30 x 4 is 120
and 2 x 4 is 8
and 120 + 8 gives
a sum of 128

24. 54 x 2

25. 50 x 2 is 100
and 4 x 2 is 8
and 100 + 8 gives
a sum of 108

26. 91 x 3

27. 90 x 3 is 270
and 1 x 3 is 3
and 270 + 3 gives
a sum of 273

28. 28 x 5

29. 20 x 5 is 100
and 8 x 5 is 40
and 100 + 40 gives
a sum of 140

30. 63 x 5

31. 60 x 5 is 300
and 3 x 5 is 15
and 300 + 15 gives
a sum of 315

32. 77 x 2

33. 70 x 2 is 140
and 7 x 2 is 14
and 140 + 14 gives
a sum of 154

34. 86 x 4

35. 80 x 4 is 320
and 6 x 4 is 24
and 320 + 24 gives
a sum of 344

36. 36 x 5

37. 30 x 5 is 150
and 6 x 5 is 30
and 150 + 30 gives
a sum of 180

38. 41 x 8

39. 40 x 8 is 320
and 1 x 8 is 8
and 320 + 8 gives
a sum of 328

40. 39 x 4

41. 30 x 4 is 120
and 9 x 4 is 36
and 120 + 36 gives
a sum of 156

42. 25 x 8

43. 20 x 8 is 160
and 5 x 8 is 40
and 160 + 40 gives
a sum of 200

44. 66 x 7

45. 60 x 7 is 420
and 6 x 7 is 42
and 420 + 42 gives
a sum of 462

46. 96 x 3

47. 90 x 3 is 270
and 6 x 3 is 18
and 270 + 18 gives
a sum of 288

48. 47 x 4

49. 40 x 4 is 160
and 7 x 4 is 28
and 160 + 28 gives
a sum of 188

50. 21 x 8

51. 20 x 8 is 160
and 1 x 8 is 8
and 160 + 8 gives
a sum of 168

52. 74 x 5

53. 70 x 5 is 350
and 4 x 5 is 20
and 350 + 20 gives
a sum of 370

54. 58 x 6

55. 50 x 6 is 300
and 8 x 6 is 48
and 300 + 48 gives
a sum of 348

56. 38 x 7

57. 30 x 7 is 210
and 8 x 7 is 56
and 210 + 56 gives
a sum of 266

58. 64 x 9

59. 60 x 9 is 540
and 4 x 9 is 36
and 540 + 36 gives
a sum of 576

60. 96 x 8

61. 90 x 8 is 720
and 6 x 8 is 48
and 720 + 48 gives
a sum of 768

62. 5th Grade
Mental Math
Two Digit by One Digit Multiplication II