Subtraction of 3-digit numbers with exchanging, carry over or remaining

Subject:  Mathematics 

 

Class: Basic 2 / Primary 2 / Year 2

 

Term: Second Term / 2nd Term

 

Week: Week 5

 

Topic:

Subtraction of 3-digit numbers with exchanging, carry over or remaining  

 

 

 

Previous Knowledge: The pupils have previous knowledge of

 

 

Addition of 3-digit numbers without exchange or remaining

 

that was taught in their previous lesson.

 

 

Behavioural  Objectives : At the end of the lesson, learners will be able to

  • Subtract 3-digit numbers without and with exchange or remaining

 

Instructional Materials 

  • Wall charts
  • Pictures
  • Beans
  • Sticks
  • Online Resource
  • Textbooks
  • Laptop
  • Top bottles
  • Matches

 

Methods of Teaching 

  • Role modelling
  • Questions and Answers
  • Explanation
  • Discussion
  • Recitation
  • Imitation
  • Story Telling
  • Dramatization

 

Content: 

Subtraction of Numbers deals with the ability of pupils to subtract or minus or deduct some given set of figures from one another . They will need item likes crown top, bottle top, counting sticks or abacus to perform simple tasks involving subtraction of Numbers

Keywords that imply subtraction of Numbers are

  • Minus
  • Subtract
  • Less
  • Take away
  • Find the difference

 

Study the samples below carefully

 

 

 1)987
− 903
         84

 

 2) 858
− 785
73

 

 3)  910
− 828
82

 

4)  505
− 229
276

 

5) 255
− 159
96

 

6) 829
− 215
614

 

 7) 921
− 654
267

 

 8) 710
− 489
221

 

 9) 982
− 671
311

 

10) 706
− 650
56

 

11) 678
− 442
236

 

12) 958
− 781
177

 

 13) 624
− 181
443

 

 14) 473
− 187
286

 

 15) 510
− 491
19

 

16) 739
− 345
394

 

17) 713
− 230
483

 

18) 950
− 435
515

 

Presentation : 

The topic is presented step by step

Step 1: The class teacher revises the old topic

Step 2: The class teacher introduces the new topic

Step 3: The class teacher allows the pupils to give their own contributions and gives room for pupils” participation

 

Class Teacher and Pupils Activities. Interaction or Participation 

This involves class teacher and pupils’ interaction, conversation, imitation or modeling through discussion, play method or just by recitation or asking and answering questions that are related to the topic that has just been taught

  • The class teacher asks the pupils the meaning of a noun
  • The class teacher makes the pupils to write out some parts of the body

 

 

Evaluation

Solve the following sums

 1)426
 – 112

 

 2)750
– 219

 

 3)961
– 122

 

 4)988
 – 701

 

 5)659
– 240

 

 6)488
– 111

 

 7)343
– 142

 

 8)882
– 105

 

 9)770
– 211

 

Arrange the following under Hundred, Tens and Units and do the necessary subtraction of Numbers.

 

1.835 – 201 = H TU

2. 123 – 111 = H TU

3. 523 – 401 = H TU

4. 555 – 331 = H TU

5 . 899 – 143 = H TU

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Addition of 3-digit numbers without exchange or remaining

 

 

 

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