Page 85 - Arithmetic
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DO NOT DUPLICATE
Chapter Thirteen
FOR ONLINE USE ONLY
Subtracting numbers not exceeding
Subtracting numbers not exceeding 99
Numbers can be subtracted horizontally or vertically.
Subtracting numbers horizontally without
regrouping
_
Example 83 21 = 62
Steps
1. Subtract the ones 2. Subtract the tens
_
_
83 21 = 2 83 21 = 6 2
The answer is 62
Exercise 1
Answer the following questions written
horizontally.
1. 26 _ 20 = 9. 15 _ 3 =
2. 19 _ 12 = 10. 49 _ 24 =
3. 44 _ 11 = 11. 60 _ 40 =
4. 29 _ 24 = 12. 87 _ 15 =
5. 95 _ 5 = 13. 77 _ 6 =
6. 66 _ 60 = 14. 83 _ 70 =
7. 64 _ 24 = 15. 33 _ 22 =
8. 48 _ 7 = 16. 68 _ 21 =
78
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Ministry of Education, Science and Technology
Mathematics STD 1.indd 78 03/08/2019 11:18