Class 5 · Math · No. 03
Adding and subtracting large numbers
Swap to make sums equal, carry and borrow, estimate first
Travellers add up distances, fuel and fares, and work out how far is still to go. In this chapter you will swap numbers to make two sums equal, add and subtract big numbers column by column, and estimate before you work out the exact answer.
Think about it
A highway runs 1,855 km from Srinagar to a town, then 1,862 km more to Kanniyakumari. How long is the whole highway?
In this chapter
- §1Making sums equal
- §2Adding and subtracting by place value
- §3Estimate first
- ★Practice: 8 questions
- ◆Olympiad challenge: 4 questions
- ✓Recap: remember this
Class 5 plan
This chapter opens with the Class 5 plan
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Plate IAdding and subtracting large numbers