Page 71 - ICSE Math 4

2. Divide using long division method and check your answer.
(a) 49 ÷ 2 (b) 38 ÷ 3 (c) 92 ÷ 4 (d) 61 ÷ 2

(e) 75 ÷ 9 (f) 87 ÷ 5 (g) 96 ÷ 8 (h) 85 ÷ 6

(i) 92 ÷ 7 (j) 89 ÷ 4 (k) 99 ÷ 5 (l) 78 ÷ 7

Division of a number by a 2-Digit Number

We can also divide a given number by a 2-digit number. Let’s see how we can divide 336
by 24.
1
Step 1: Since 24 is a 2-digit number (divisor), we take the fi rst two digits
of the dividend. 24 336
– 24
We will divide 33 by 24.
9
Since 24 × 1 = 24 < 33 and 24 × 2 = 48 > 33, so we write 24 below 33 as 48
cannot be subtracted from 33.
Write 1 at the tens place of the quo ent and 24 below 33 and then subtract.

33 – 24 = 9
Step 2: Bring down 6 of the dividend. To check how many mes 24 is 96, 14
mul ply 24 by 3 and so on. 24 336

24 × 3 = 72 < 96 – 24
96
24 × 4 = 96
– 96
Write 4 at the ones place of the quo ent and 96 below 96 to 00
subtract.
96 – 96 = 0

So, 336  24 = 14.

Note: We will see division of numbers by a 2-digit number such as 24 and 60 in
Chapter 12, Time and Temperature under the secƟ on Conversion of Days, Hours and
Minutes.

Division of a 3-Digit Number by a 1-Digit Number

When we divide a 3-digit number by a 1-digit number, the quo ent may be a 2-digit or a
3-digit number.

Example 7: Divide 115 by 5.
Solu on: 115 ÷ 5

Step 1: Start from the hundreds place of the dividend. The digit 2
at the hundreds place is 1. 5 115

Since 1 is less than the divisor 5, consider fi rst two digits – 10
of the number. 1

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