Worksheet on Checking Subtraction Using Addition
Here we can use addition to check the answer for the subtraction.
1. Subtract ans check your answer.
|
(i) |
T O 5 4 - 3_ ________ |
Check: 3 + _____ = 54 |
|
(ii) |
T O 6 8 - 2 5_ ________ |
Check: 25 + _____ = _____ |
|
(iii) |
T O 9 2 - 2 9_ ________ |
Check: _____ + _____ = _____ |
Answer:
1. (i) 51; Check: 3 + 51 = 54
(ii) 43; Check: 25 + 43 = 68
(iii) 63; Check: 29 + 63 = 92
2. Find the difference and check your answer using addition:
Answer:
2. (i) 76 - 24 = 52; 52 + 24 = 76
(ii) 91 - 50 = 41; 41 + 50 = 91
(iii) 25 - 13 = 12; 12 + 13 = 25
(iv) 83 - 42 = 41; 41 + 42 = 83
3. Fill in the blanks: One has been done for you.
|
(i) |
35 + 5 = 40 |
40 - 5 = 35 |
|
(ii) |
60 + 25 = 85 |
___ _ ___ = ___ |
|
(iii) |
76 + 4 = 80 |
___ _ ___ = ___ |
|
(iv) |
45 + 10 = 55 |
___ _ ___ = ___ |
|
(v) |
52 + 8 = 60 |
___ _ ___ = ___ |
|
(vi) |
38 + 4 = 42 |
___ _ ___ = ___ |
Answer:
3. (ii) 85 - 25 = 60
(iii) 80 - 4 = 76
(iv) 55 - 10 = 45
(v) 60 - 8 = 52
(vi) 42 - 4 = 38
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