← Back to lesson·Advance A · W2 D5 · 3 drill sections · ~6 min

Advance A · Week 2 · Addition & Subtraction Mastery

Day 5 Practice Worksheet — Making Change Quickly

Applying complements to real cash transactions.

Goal · 50 mixed +/− problems

Name
Date
Score

  1. §1Complement to 100

    ⏱ 2 min · 20 problems

    Timed drill — start a 2-minute timer, then solve in order. Goal: finish under time with full accuracy.

    1. 01.Complement of 5 to 100=
    2. 02.Complement of 4 to 100=
    3. 03.Complement of 44 to 100=
    4. 04.Complement of 23 to 100=
    5. 05.Complement of 53 to 100=
    6. 06.Complement of 52 to 100=
    7. 07.Complement of 4 to 100=
    8. 08.Complement of 20 to 100=
    9. 09.Complement of 59 to 100=
    10. 10.Complement of 9 to 100=
    11. 11.Complement of 11 to 100=
    12. 12.Complement of 16 to 100=
    13. 13.Complement of 16 to 100=
    14. 14.Complement of 59 to 100=
    15. 15.Complement of 33 to 100=
    16. 16.Complement of 35 to 100=
    17. 17.Complement of 52 to 100=
    18. 18.Complement of 94 to 100=
    19. 19.Complement of 54 to 100=
    20. 20.Complement of 60 to 100=

  2. §2Mixed addition

    ⏱ 2 min · 20 problems

    Timed drill — start a 2-minute timer, then solve in order. Goal: finish under time with full accuracy.

    1. 01.33 + 23=
    2. 02.29 + 14=
    3. 03.35 + 40=
    4. 04.58 + 78=
    5. 05.52 + 70=
    6. 06.90 + 74=
    7. 07.12 + 82=
    8. 08.84 + 72=
    9. 09.67 + 46=
    10. 10.93 + 61=
    11. 11.17 + 43=
    12. 12.54 + 27=
    13. 13.28 + 32=
    14. 14.38 + 47=
    15. 15.85 + 78=
    16. 16.33 + 19=
    17. 17.55 + 99=
    18. 18.88 + 28=
    19. 19.48 + 65=
    20. 20.53 + 60=

  3. §3Mixed subtraction

    ⏱ 2 min · 20 problems

    Timed drill — start a 2-minute timer, then solve in order. Goal: finish under time with full accuracy.

    1. 01.52 − 52=
    2. 02.74 − 50=
    3. 03.38 − 16=
    4. 04.25 − 23=
    5. 05.30 − 21=
    6. 06.75 − 72=
    7. 07.72 − 16=
    8. 08.84 − 71=
    9. 09.55 − 32=
    10. 10.36 − 10=
    11. 11.23 − 20=
    12. 12.66 − 43=
    13. 13.43 − 17=
    14. 14.35 − 28=
    15. 15.49 − 41=
    16. 16.32 − 22=
    17. 17.20 − 18=
    18. 18.72 − 63=
    19. 19.71 − 34=
    20. 20.45 − 10=

Answer Key

§1 · Complement to 100

  1. 1.95
  2. 2.96
  3. 3.56
  4. 4.77
  5. 5.47
  6. 6.48
  7. 7.96
  8. 8.80
  9. 9.41
  10. 10.91
  11. 11.89
  12. 12.84
  13. 13.84
  14. 14.41
  15. 15.67
  16. 16.65
  17. 17.48
  18. 18.6
  19. 19.46
  20. 20.40

§2 · Mixed addition

  1. 1.56
  2. 2.43
  3. 3.75
  4. 4.136
  5. 5.122
  6. 6.164
  7. 7.94
  8. 8.156
  9. 9.113
  10. 10.154
  11. 11.60
  12. 12.81
  13. 13.60
  14. 14.85
  15. 15.163
  16. 16.52
  17. 17.154
  18. 18.116
  19. 19.113
  20. 20.113

§3 · Mixed subtraction

  1. 1.0
  2. 2.24
  3. 3.22
  4. 4.2
  5. 5.9
  6. 6.3
  7. 7.56
  8. 8.13
  9. 9.23
  10. 10.26
  11. 11.3
  12. 12.23
  13. 13.26
  14. 14.7
  15. 15.8
  16. 16.10
  17. 17.2
  18. 18.9
  19. 19.37
  20. 20.35