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 Page 1


																																										Without	Compliment-Single	Digit	Sums	 	 	 	 	
	 	 	 	
	 	 	 	 	 	 	 	 	 	
	
						1	
						1	
	
								1	
						-1	
	
							1	
							2	
	
						2	
					-1	
	
						1	
						3	
	
								2		
						-2	
	
						1	
						5	
	
						3	
					-1	
	
						1	
						6	
	
								3	
						-2	
	 	 	 	 	 	 	 	 	 	
	
						1	
						7	
	
						3	
					-3	
	
						1	
						8	
	
							4	
						-1	
	
							2	
							1	
	
								4	
						-2	
	
						2	
						2	
	
						4	
					-3	
	
						2	
						5		
	
						4	
					-4	
	 	 	 	 	 	 	 	 	 	
Page 2


																																										Without	Compliment-Single	Digit	Sums	 	 	 	 	
	 	 	 	
	 	 	 	 	 	 	 	 	 	
	
						1	
						1	
	
								1	
						-1	
	
							1	
							2	
	
						2	
					-1	
	
						1	
						3	
	
								2		
						-2	
	
						1	
						5	
	
						3	
					-1	
	
						1	
						6	
	
								3	
						-2	
	 	 	 	 	 	 	 	 	 	
	
						1	
						7	
	
						3	
					-3	
	
						1	
						8	
	
							4	
						-1	
	
							2	
							1	
	
								4	
						-2	
	
						2	
						2	
	
						4	
					-3	
	
						2	
						5		
	
						4	
					-4	
	 	 	 	 	 	 	 	 	 	
1 2 3 4 5 6 7 8 9 10 
2 0 3 1 4 0 6 2 7 1 
 
11 12 13 14 15 16 17 18 19 20 
8 0 9 3 3 2 4 1 7 0 
 
 
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FAQs on Worksheet Solutions: Addition and Subtraction- 3 (Without Compliment) - Abacus - Class 1

1. What is the basic concept of addition and subtraction without using complements?
Ans.Addition and subtraction without using complements involve straightforward calculations where numbers are added or subtracted directly without converting them into their complementary forms. This method relies on understanding the place value and performing operations in a sequential manner, ensuring that regrouping or carrying over is managed correctly.
2. How can I practice addition and subtraction without complements effectively?
Ans.To practice addition and subtraction without complements effectively, you can use worksheets that focus on simple problems. Start with single-digit numbers and gradually increase the complexity by including two-digit and three-digit numbers. Regular practice with timed quizzes can also help improve speed and accuracy.
3. What are some common mistakes to avoid when doing addition and subtraction without complements?
Ans.Common mistakes include misaligning numbers by their place values, forgetting to carry over when necessary, and incorrectly subtracting larger digits from smaller ones. To avoid these errors, it's essential to double-check your work and ensure that each digit is correctly placed according to its value.
4. Are there any tips for remembering the order of operations in addition and subtraction?
Ans.A helpful tip for remembering the order of operations in addition and subtraction is to use the acronym PEMDAS (Parentheses, Exponents, Multiplication and Division, Addition, and Subtraction). While this primarily applies to more complex operations, it can remind you to always handle addition and subtraction sequentially from left to right when they occur together.
5. How does mastering addition and subtraction without complements help in everyday life?
Ans.Mastery of addition and subtraction without complements is crucial in everyday life as it enhances mental math skills, allowing for quick calculations during shopping, budgeting, and cooking. Being comfortable with these operations can facilitate better decision-making and improve financial literacy.
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