We will learn how to divide by 10, 100 and 1000 divisors to find the quotient and remainder. Let us consider some examples:
When we divided a number by 10 then the very first digit from the extreme right of the dividend forms the remainder and the remaining digits from the quotient.
For example:
(i) Divide 2542 ÷ 100 So, 2542 ÷ 100 = 25 with remainder 42 |
(ii) Divide 4978 ÷ 100 So, 4978 ÷ 100 = 49 with remainder 78 |
When we divide a number by 100 then the first two digits from the extreme right of the dividend from the remainder and remaining digits from the quotient.
For example:
(i) Divide 7943 ÷ 1000 So, 7943 ÷ 1000 = 7 with reminder 94 |
(ii) Divide 9869 ÷ 1000 So, 9869 ÷ 1000 = 9 with remainder 869 |
When we divide a number by 1000 then the first three digits from the extreme right of the dividend from the remainder and the remaining digits form the quotient.
Observe the following table carefully to divide by 10, 100 and 1000 divisors.
Dividend |
Divisor |
Quotient |
Remainder | ||
3536 |
÷ |
10 |
= |
353 |
6 |
3536 |
÷ |
100 |
= |
35 |
36 |
3536 |
÷ |
1000 |
= |
3 |
536 |
13536 |
÷ |
1000 |
= |
13 |
536 |
213536 |
÷ |
1000 |
= |
213 |
536 |
Word Problems:
1. 42 boys collected $4662 to donate in a fund. If each boy contributed equally, how much did each boy contribute?
Solution:
42 boys contributed together = $4662
Each boy contributed = $4662 ÷ 42.
So, each boy contributed $111.
2. A dealer bought 25 chairs for $12350. Find the cost of one chair.
Solution:
25 chairs cost = $12350
1 chair costs = $12350 ÷ 25.
So, the price of one chair = $494.
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