**Add and subtract whole numbers word problems :**

This is basic topic for the students who are in primary level. Here we are going to learn how to add and subtract whole numbers.

**Example 1 :**

The rough estimation of cement needed to construct a house is as follows

For construction - 1,150 bags of cement

For laying concrete - 850 bags of cement

For plastering the walls - 98 bags of cement

What is the total number of cement bags required to construct a house?

**Solution :**

To find the total number of cement bags required, we need to add the number of bags required for construction, number of bags required for concrete and the number of bags required for plastering the walls.

Required number of cement bags = 1,150 + 850 + 98

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Hence, required number of cement bags = 2,098

**Example 2 :**

A family spent $ 3,500 monthly for grocery, $ 1,200 for milk , $ 4800 for rent and electricity, and $ 950 for other expenses. Find the total expenditure of the family in the month?

**Solution :**

To find the total expenditure of the family in the month, we have to add all the expenditure.

Money spent for grocery = $3,500

Money spent for milk = $1,200

Money spent for electricity = $4,800

Money for spent for other expenses = $950

Total expenses = 3,500 + 1,200 + 4,800 + 950

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Hence, the total expenditure of the family in the month $10,450

**Example 3 :**

A municipality collects $ 8,430 as water tax, $ 9,890 as professional tax, $ 1,480 as entertainment tax and $ 2,740 as service tax. What is the total amount collected by the municipality?

**Solution :**

To find the total amount collected by the municipality , we need to add the amount spent for water tax, professional tax, entertainment tax and service tax.

Amount of water tax = $8,430

Amount spent for professional tax = $ 9,890

Amount spent for entertainment tax = $ 1,480

Amount spent for service tax = $ 2,740

Total amount = $8,430 + $9,890 + $1,480 + $2,740

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Hence, total amount collected by the municipality is $22,540

**Example 4 :**

In an exhibition, the amount collected from sale of books electronic items, textiles, household items are $1,700, $18,585, $9,200 and $22,000 respectively. What is the total amount collected in the exhibition?

**Solution :**

To find the total amount collected in the exhibition, we need to add the amount.

Amount collected for books = $1,700

Amount collected for electronic items = $18,585

Amount collected for textiles = $9,200

Amount collected for household items = $22,000

Total amount = $1,700 + $18,585 + $9,200 + $22,000

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Hence, total amount collected in the exhibition is $51,485

**Example 5 :**

Find the difference between the largest five digit number and smallest six digit number.

**Solution :**

Largest five digit number = 99,999

Smallest six digit number = 100000

To find the difference between them, we need to subtract smallest from largest.

Hence, the difference between the largest five digit number and smallest six digit number is 1.

**Example 6 :**

The cost of a motorbike is $45,800. If the cost of a bicycle $42,910 less than the cost of a motor bike, find the cost of the bicycle.

**Solution :**

To find the cost of the cycle, we have to subtract 42,910 from the cost of motor bike.

Cost of cycle = 45,800 - 42,910

Cost of cycle = 2,890

After having gone through the stuff given above, we hope that the students would have understood "Add and subtract whole numbers word problems".

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