N.4

소수의 덧셈과 뺄셈

3분기 (2~4월)

소수점을 맞춰 소수 셋째 자리까지 더하고 빼기

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Daniel Math Academy · Grade 4 Math

Adding & Subtracting Decimals

Skill N.4 · Adding & subtracting decimals · ★★☆ Medium · Quarter 3

Name
 
Date
 
Score/ 12

Add or subtract.

Example
23.45
−8.17
15.28

Think: Line up the decimal points and subtract like whole numbers, regrouping when needed: .

  1. 1
    40.66
    +50.66
  2. 2
    42.03
    +11.91
  3. 3
    29.53
    +28.14
  4. 4
    50.79
    +38.58
  5. 5
    14.52
    −7.65
  6. 6
    40.43
    −35.05
  7. 7
    44.75
    −5.39
  8. 8
    3.99
    +37.81
  9. 9
    41.43
    −3.35
  10. 10
    41.53
    −7.65
  11. 11
    18.23
    +49.14
  12. 12
    22.81
    +2.51
Daniel Math Academy · danielmath.comWorksheet #5st5ake · Page 1 / 2
Daniel Math Academy · Grade 4 Math

Answer Key

N.4 Adding & Subtracting Decimals · ★★☆ Medium

  1. 191.32
  2. 253.94
  3. 357.67
  4. 489.37
  5. 56.87
  6. 65.38
  7. 739.36
  8. 841.8
  9. 938.08
  10. 1033.88
  11. 1167.37
  12. 1225.32
Daniel Math Academy · danielmath.comWorksheet #5st5ake · Answer Key · Page 2 / 2