Addition of 2 and 3-digit numbers

WEEK 5

Topic: Addition

Subtitle: Addition of 2 and 3-digit numbers

Objectives: At the end of this lesson, pupils should be able to:

1. add 2digit numbers

2. add 3 numbers taking two at a time

CONTENT  

Addition of 2-digit numbers with renaming

Addition of 2-digit numbers with renaming is solved by using:

  • the expanded method and,
  • the direct or short method.

 

Addition using a direct method or shortcut

 

  1. 73 + 37

  7  3

+3  7

  110

 

  1. 54 + 23

 

  5  4

+2  3

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