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3

Subtraction

LEARNING ObjEctIvEs

After studying this chapter, students will be able to...

y subtract 3-digit numbers without and with regrouping
y subtract 4-digit numbers without and with regrouping
y evaluate and estimate the difference
y solve word problems involving subtraction
y perform addition and subtraction together

21 st
Century #Life Skills and Values
Skills
Warm Up Clean India Mission

Clean India Mission is the campaign

started by the government of India for

making the country clean and green.
Students of Class 3 took the initiative
beyond the classrooms. They cleaned

the park near the school. They
collected garbage and put it into the

dustbin kept in the park. Observe the
given picture and answer the following

questions.

54 Mathematics 3