Word Problems on Addition and Subtraction

Solved examples on Word problems on addition and subtraction.

1. In a school there are 2,392 boys and 2,184 girls. Find the total number of students in the school.

Solution:

Number of boys in the school   =       2392

Number of girls in the school   =    + 2184

Total students in the school     =       4576

2. In a factory, 1,845 garments are made in the first month, 2,915 are made in the second month and 4,240 garments are made in the third month. Find the total number of garments made in the factory.

Solution:

Garments made in the first month        =       1845

Garments made in the second month   =       2915

Garments made in the third month      =   +  4240

Total number of garments made          =       9000

3. Madhu had $9031. She bought a T.V. at certain price. Now, $1356 are left with her. How much money she pay for the T.V..

Solution:

                                                      Th     H     T     O

Total money with Madhu      =  $       9      0     3     1

Money left with her             =  $   -   1      3     5     6

Money she paid for the T.V.  =  $       7      6     7     5

Thus, Madhu paid 7675 for the T.V.

4. Ron bought an ice-cream cone for $ 35 and chocolate bar for $ 20. How much would he have if he gave shopkeeper $ 100?

Solution:

Method I:

Ron had                       =                      $100

Ice-cream cone             =                     $  35

Now, Ron had               = $100 – $35 = $ 65

Chocolate bar               =                      $ 20

He had                        = $ 65 - $ 20  = $ 45

Method II:

Ice-cream cone                     = $  35

Chocolate bar                       = $   20

Total = $ 35 + $ 20              = $   55

Ron had =                            = $ 100

He had spend                        = $  55

Now, he had = $ 100 - $ 55   = $  45

5. Mr. Daniel spends $ 6,800 on grocery, $ 5,765 on rent and $ 580 on others. Find his savings if his monthly salary is $ 20000.

Solution:

Grocery                        =           6800

Rent                             =           5765

Others                          =    +       580

Total                             =       $ 13145

His monthly salary         =      20000

He spent                       =    - 13145

His savings                    =     $ 6855

3rd Grade Math Lessons

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