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5. Find the product of the following by regrouping the terms.
(a) 250 × 8 × 100 (b) 5 × 195 × 20 (c) 1550 × 50 × 2

(d) 400 × 25 × 4 (e) 4365 × 20 × 5 (f) 10 × 3364 × 10
(g) 50 × 1000 × 2 (h) 4 × 6666 × 25 (i) 2005 × 50 × 20
6. Solve the following word problems:

(a) The cost of a ceiling fan is `3199. What will be the cost of such 150 ceiling fans?
(b) In a factory 27,628 items are produced every day. How many items will be produced
in one year and 2 weeks?

(c) A milk dairy supplies 1250 litres of milk daily. How much milk does it supply in a
leap year?

(d) A box contains 150 toys. 4500 boxes were brought to a market on a particular day.
Find the total number of toys brought to the market on that day.

(e) If a ‘Mother-Dairy’ booth sells 1258 litres of milk in a day, how much milk will it
sold in the month of December? If a litre of milk costs `48, what will be the cost
of total milk sold in December?
(f) What is the product of largest 5-digit number and smallest 3-digit number.

(g) The odometer of car shows 11152 km. How many hundred metres is in the
reading?

DIVISION OF NUMBERS

Division by 10, 100 and 1000
Š When a number is divided by 10, the ones digit of the dividend becomes the remainder
and the number formed by the rest of the digits becomes the quotient.

Example: (a) 56738 ÷ 10, Q = 5673, R = 8 (b) 270364 ÷ 10, Q = 27036, R = 4
Š When a number is divided by 100, the number formed by tens and ones digits of the
dividend becomes the remainder and the number formed by the rest of the digits
becomes the quotient.

Example: (a) 41036 ÷ 100, Q = 410, R = 36 (b) 521483 ÷ 100, Q = 5214, R = 83
Š When a number is divided by 1000, the number formed by hundreds, tens and ones
digits of the dividend becomes the remainder and the number formed by the rest of
the digits becomes the quotient.
Example: (a) 69273 ÷ 1000, Q = 69, R = 273 (b) 500436 ÷ 1000, Q = 500, R = 436

Division of Large Numbers
Knowledge Desk
Let us recall the terms related to division: The symbol for '÷' called

The number which is to be divided is called the dividend. The 'obelus' was first used in 1659
number by which the dividend is divided is called the divisor. by the Swiss mathematician
Johann Heinrich Rahn in his
The result of division is called the quotient (Q). work– Teutsche Algebra.

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