Here are the solutions to the math problems on the worksheet.
Section 2: Subtraction (පහත සංඛ්යා අඩු කරන්න)
Step-by-step Calculation:
1.
14 - 4: Take 4 away from 14. The answer is 10.
2.
18 - 3: Take 3 away from 18. $8 - 3 = 5$, so the answer is 15.
3.
16 - 5: Take 5 away from 16. $6 - 5 = 1$, so the answer is 11.
4.
18 - 6: Take 6 away from 18. $8 - 6 = 2$, so the answer is 12.
5.
15 - 2: Take 2 away from 15. $5 - 2 = 3$, so the answer is 13.
6.
13 - 6: Take 6 away from 13. The answer is 7.
7.
11 - 5: Take 5 away from 11. The answer is 6.
8.
16 - 4: Take 4 away from 16. $6 - 4 = 2$, so the answer is 12.
9.
15 - 6: Take 6 away from 15. The answer is 9.
10.
17 - 5: Take 5 away from 17. $7 - 5 = 2$, so the answer is 12.
Section 3: Fill in the Blanks (හිස් තැන් පුරවන්න)
Step-by-step Logic:
* For questions like $A - B = \square$, simply subtract B from A.
* For questions like $A - \square = C$, find what number you must take away from A to get C. You can do this by calculating $A - C$.
* For questions like $\square - B = C$, add B and C together to find the starting number.
1. $7 - 2 = \mathbf{5}$
2. $8 - 8 = \mathbf{0}$
3. $6 - \mathbf{2} = 4$ (Because $6 - 4 = 2$)
4. $12 - \mathbf{9} = 3$ (Because $12 - 3 = 9$)
5. $17 - 8 = \mathbf{9}$
6. $11 - \mathbf{7} = 4$ (Because $11 - 4 = 7$)
7. $18 - \mathbf{8} = 10$ (Because $18 - 10 = 8$)
8. $\mathbf{17} - 5 = 12$ (Because $12 + 5 = 17$)
9. $16 - \mathbf{8} = 8$ (Because $16 - 8 = 8$)
10. $\mathbf{13} - 4 = 9$ (Because $9 + 4 = 13$)
Section 4: Word Problems (ගැටලු විසඳන්න)
Logic: Read the story, identify the starting number, identify what is taken away, and subtract to find the remainder.
1.
Story: 17 flowers total. 6 were given away.
*
Calculation: $17 - 6 = 11$
*
Answer: 11 flowers remain.
2.
Story: 13 books total. 9 were read.
*
Calculation: $13 - 9 = 4$
*
Answer: 4 books remain unread.
3.
Story: 18 balls total. 3 were lost.
*
Calculation: $18 - 3 = 15$
*
Answer: 15 balls remain.
4.
Story: 16 pencils total. 8 were used.
*
Calculation: $16 - 8 = 8$
*
Answer: 8 pencils remain.
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Final Answer:
2. Subtraction Answers:
(1) 10
(2) 15
(3) 11
(4) 12
(5) 13
(6) 7
(7) 6
(8) 12
(9) 9
(10) 12
3. Fill in the Blanks Answers:
(1) 5
(2) 0
(3) 2
(4) 9
(5) 9
(6) 7
(7) 8
(8) 17
(9) 8
(10) 13
4. Word Problem Answers:
(1) 11
(2) 4
(3) 15
(4) 8
Parent Tip: Review the logic above to help your child master the concept of 3 grade math paper.
