Subtraction II

Week: Eight

Topic: Subtraction I

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

1. Subtract f 2- digit numbers with exchanging and renaming.

2. apply addition and subtraction in everyday activities.

Reference material:

1. Number card

2. Cardboard strips with numerals and number line

3. Number beads.

4. Sticks.

5. Counters such as oranges, beans seed bottle tops.

Content:

Subtraction of 2- digits numbers without exchanging or renaming.

1. 53

• • 21

=

32

2. 94 -32

=

62I

Identification of the digit that is in tens and units e.g.

48=4tens and 8units.

57= 5tens and 7units.

83= 8tens and 3units.

56=5tens and 6units.

Evaluation

1. Subtract 2-digit numbers without exchanging or renaming.

2. subtract 2-digit numbers by exchanging and renaming.