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8. 146 sweets are divided equally among 9 boys. How many sweets will each boy get
and how many will remain undivided?

9. A man earns `994 in a week. Find his earnings for a day.

10. There are 1508 straws for making the bundles of 100 each. How many bundles can
be made and how many straws will be left?

iDEntifying thE MathEMatical opErations

The process of identifying the mathematical operations involves deciding which
mathematical operation (addition, subtraction, multiplication, or division) will be useful

in solving a word problem.

example 1: Rachna had 12 ribbons. Her mother gave her 5 more ribbons. How many
ribbons does she have in all?

Solution: Keyword used is 'in all'. So, choose the operation:

+ – × ÷ 12 + 5 = 17 ribbons

example 2: Soni had a packet of 20 crayons. She lost 4 crayons at school. How many

crayons does she have left with?
Solution: Keyword used is 'left'. So, choose the operation:

+ – × ÷ 20 – 4 = 16 crayons

example 3: A pack of cards has 52 cards. How many cards will be there in 3 such packets?

Solution: The value of '1 unit' is given. To find the value of 'more units', choose the
operation:

+ – × ÷ 52 × 3 = 156 cards

example 4: The cost of 8 oranges is `80. What is the cost of 1 orange?

Solution: The value of 'more units' is given. To find the value of '1 unit', choose the
operation:

+ – × ÷ `80 ÷ 8 = `10

98 Mathematics-3