SaiBook.us Subtraction

Lesson Example Discussion Quiz: Class Homework

Step-4

Title: Subtraction

Grade: 3-a Lesson: S4-L2

Explanation: Hello Students, time to practice and review the steps. Let us take next 2-5 minutes to solve the steps for the problems. This is a good exercise to check your understanding of the concepts.Second student to identify and review important steps.Focus on understanding the concepts and application to solving problems step by step.

sbMath-row-a-ones-image5 = {sbMath-row-a-ones-image5}

Step

Value

Image

3121

01	1			:
20	10	10		:
100	100			:
3000	₁₀₀₀	₁₀₀₀	₁₀₀₀	:

724

04	1	1	1	1		:
20	10	10				:
700	100	100	100	100	100	:	100	100

2397

07	1	1	1	1	1	:	1	1
90	10	10	10	10	10	:	10	10	10	10
300	₁₀₀	₁₀₀	₁₀₀			:
2000	₁₀₀₀	₁₀₀₀				:

Step	Description	A	B	C	D
B1	Borrow	2	10	0	0
B2	Borrow		0	11	0
B3	Borrow		0	1	11
M1	Minuend	3	1	2	1
M2	Subtrahend	-	7	2	4
A1	D3 11 - 4 = 7 C3 11 - 2 = 9 B3 10 - 7 = 3 A3 2 - 0 = 2	2	0 3 3	0 9 9	0 7 7
S1	D3 Bring Down 7 C3 Bring Down 9 B3 Bring Down 3 A3 Bring Down 2	2	3	9	7
Sum	Subtraction: 3121 - 724 = 2397	2	3	9	7

Step	Type	Explanation	Answer
2	Problem	Find the difference between	3121 , 724
3	Clue	Difference means Subtraction	-
4	Step	Subtract the numbers	\begin{align} 3121 & \\ -\quad 724 \\ \hline 2397 & \end{align}
5	Step	After Subtraction we get	2397
6		Answer	D