Study P3 Mathematics Addition and Subtraction 1 - Geniebook

Addition And Subtraction

The symbol which represents addition is '\(+\)'  and the symbol which represents subtraction is '\(-\)'.

In this article, the learning objectives are: 

  1. Addition and Subtraction (Direct)
  2. Addition and Subtraction (Indirect)
  3. More than/Less than (Direct)
  4. More than/Less than (Indirect)

 

1. Addition And Subtraction (Direct)

In Primary 3, we will learn about addition and subtraction of numbers up to 4-digits.


 

Question 1: 

Do the following.

\(1785 + 3162 =\text{__________}\)

 

Solution:

Answer:

4947


 

Question 2: 

Do the following.

\(4360 + 4723 =\text{__________}\) 

 

Solution:

Answer:

9083

 

 

Question 3: 

Do the following.

\(3740 + 6231 =\text{__________}\) 

 

Solution:

Answer:

9971

 

 

Question 4: 

Do the following.

The sum of 1654 and 323 is __________.

 

  1. 1331
  2. 1977
  3. 1986
  4. 4884

 

Solution: 

Sum means ‘\(+\)’.

Answer: 

(2) 1977

 

 

Question 5: 

Do the following. 

\(9017 - 901 =\text{__________}\) 

 

Solution: 

Answer:

8116

 

 

Question 6: 

Do the following.

\(9800 - 136 =\text{__________}\) 

 

  1. 9664
  2. 9736
  3. 9764
  4. 9936

 

Solution: 

 

 

Answer:

(1) 9664


 

Question 7: 

Do the following.

The difference between 8080 and 606 is __________.

 

  1. 2020
  2. 7374
  3. 7474
  4. 8686

 

Solution: 

Difference means ‘\(-\)’.

Answer:

7474


 

2. Addition And Subtraction (Indirect)

In addition and subtraction (Indirect), we need to read the questions carefully as seeing ‘\(+\)’ in the questions may not necessarily mean add and ‘\(-\)’ in the questions may not necessarily mean subtract.

 

Question 1: 

\(1460 + \text{__________} = 5000 \)

 

Solution: 

Answer: 

3540


 

Question 2: 

Do the following.

\(2745 + \text{__________} = 3429\)

 

Solution: 

Answer:

684


 

Question 3: 

Do the following.

\(5273 + \text{__________} = 6000\)

 

Solution:

Answer:

727


 

Question 4: 

Do the following.

\(3210 = 912 + \text{__________}\)

 

  1. 1298
  2. 2298
  3. 3708
  4. 4122

 

Solution: 

Answer:

(2) 2298


 

Question 5: 

Do the following.

\(7000 - \text{__________} = 2999\)

 

Solution:

Answer:

4001


 

Question 6: 

Do the following.

\(\text{__________} - 3285 = 1076\)

 

Solution:

Answer:

4361


 

Question 7: 

Do the following.

\(2540 - \text{__________} = 1210\)

 

Solution:

Answer:

1330


 

Question 8: 

Do the following.

\(\text{__________} - 124 = 5240\)

 

  1. 5026
  2. 5116
  3. 5124
  4. 5364

 

Solution:

Answer:

(4) 5364


 

Question 9: 

What are the values of A and B?

 

  1. \(A = 4, B = 7\)
  2. \(A = 3, B = 8\)
  3. \(A = 4, B = 8\)
  4. \(A = 3, B = 7\)

 

Solution: 

Starting from the ones, we add 9 and 8 to get 17.

\(\begin{align} A &= 8 - 4 - 1\\[2ex] &= 3\\[4ex] B &= 4 + 3 + 1\\[2ex] &= 8 \end{align}\)

Answer:

(2) \(A = 3, B = 8\)


 

3. More Than/Less Than (Direct)

In more than/less than (Direct) questions, we do addition when we see the term more than and we do subtraction when we see the term less than.

 

Question 1: 

1000 more than 3450 is __________.

 

Solution:

Rewriting this as an equation:

\(3450 + 1000 = 4450\)

Answer:

4450


 

Question 2: 

Do the following.

2000 more than 3465 is __________.

 

Solution: 

Rewriting this as an equation:

\(2000 + 3456 = \text{__________}\)

Answer:

5465


 

Question 3: 

Do the following.

150 more than 5915 is __________.

 

Solution: 

Rewriting this as an equation: 

\(5915 + 150 = \text{__________}\)

Answer:

6065


 

Question 4: 

Do the following.

__________ is 1213 more than 4897.

 

  1. 3648
  2. 3684
  3. 6011
  4. 6110

 

Solution: 

Rewriting this as an equation:

\(\text{__________}= 1213 + 4897\)

Answer:

(4) 6110


 

Question 5: 

Do the following.

100 less than 2083 is __________.

 

Solution:

Rewriting this as an equation:

\(2083 - 100 =\text{__________}\)

Answer:

1983


 

Question 6: 

Do the following.

10 less than 4753 is __________.

 

  1. 4653
  2. 4743
  3. 4763
  4. 4853

 

Solution: 

Rewriting this as an equation: 

\(4753 - 10 =\text{__________}\)

Answer:

(2) 4743 


 

Question 7: 

Do the following.

__________ is 250 less than 5620.

 

  1. 5970
  2. 5870
  3. 5470
  4. 5370

 

Solution: 

Rewriting this as an equation: 

\(\text{__________} = 5620 - 250 \)

Answer:

(4) 5370


 

4. More Than / Less Than (Indirect)

In more than/less than (Indirect), we do subtraction when we see the term more than. However we have to read the question carefully when we see the term less than.

It can be addition or subtraction, depending on how the question is phrased.

 

Question 1: 

__________ more than 2000 is 6500.

 

Solution: 

Rewriting this as an equation:

\(2000 + \text{__________} = 6500 \)

\(6500 - 2000 = 4500\)

Answer:

4500


 

Question 2: 

Do the following.

__________ more than 2999 is 3455.

 

Solution: 

Rewriting this as an equation:

\(2999 +\text{__________}= 3455\)

\(3455 - 2999 = 456\)

Answer:

456


 

Question 3: 

Do the following.

__________ more than 6835 is 8835.

  1. 1000
  2. 2000
  3. 2600
  4. 15 670

 

Solution: 

Rewriting this as an equation:

\(6835 + \text{__________}  = 8835\)

\(8835 - 6835 = 2000\)

Answer:

(2) 2000


 

Question 4: 

Do the following. 

300 more than __________ is 5437.

 

  1. 5137
  2. 5237
  3. 5637
  4. 5737

 

Solution: 

Rewriting this as an equation:

\(\text{__________} + 300 = 5437\)

\(5437 - 300 = 5137\)

Answer:

(1) 5137


 

Question 5:  

Do the following: 

153 less than __________ is 2846.

 

Solution: 

Rewriting this as an equation:

\(\text{__________} - 153 = 2846\)

\(2846 + 153 = 2999\)

Answer:

2999


 

Question 6: 

Do the following.

__________ less than 4657 is 4357. 

 

Solution: 

Rewriting this as an equation:

\(4657 - \text{__________} = 4357\)

\(4657 - 4357 = 300\)

Answer:

300


 

Question 7: 

Do the following. 

__________ less than 7100 is 7070.

 

  1. 30
  2. 130
  3. 1480
  4. 14 170

 

Solution: 

\(7100 - \text{__________} = 7070\)

\(7100 - 7070 = 30\)

Answer:

(1) 30


 

Question 8: 

What is the missing number? 

5440 is __________ tens more than 4840.

 

  1. 6
  2. 60
  3. 66
  4. 600

 

Solution: 

Rewriting this as an equation: 

\(5440 = 4840 + \text{__________}\)

\(\begin{align} 5440 - 4840 &= 600\\[2ex] 600 &= 60 \text{ tens} \end{align}\)

Answer:

(2) 60


 

Continue Learning
Volume Money
Mass Fractions
Addition And Subtraction Whole Numbers 1
Whole Numbers 3 Whole Numbers 6
Bar Graphs Angles
Multiplication and Division Length, Mass And Volume
Length Area and Perimeter
Parallel And Perpendicular Lines  

 

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