Page 91 - Start Up Mathematics_3

EXERCISE 6.5

1. Divide using multiplication tables.

(a) 36 ÷ 9 (b) 64 ÷ 8 (c) 60 ÷ 6 (d) 24 ÷ 4

(e) 35 ÷ 7 (f) 40 ÷ 5 (g) 18 ÷ 2 (h) 48 ÷ 6
(i) 27 ÷ 3 (j) 63 ÷ 7 (k) 81 ÷ 9 (l) 56 ÷ 8

2. Divide using long division method and check your answer.

(a) 46 ÷ 2 (b) 38 ÷ 3 (c) 92 ÷ 4 (d) 66 ÷ 2

(e) 75 ÷ 2 (f) 87 ÷ 5 (g) 96 ÷ 8 (h) 84 ÷ 6
(i) 97 ÷ 7 (j) 89 ÷ 4 (k) 99 ÷ 5 (l) 78 ÷ 7

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

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

Example 8: Five children planted 115 trees. If each of them planted equal number
of trees, how many trees did each child plant?

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

– 10

1 Since, 1 is less than the divisor 5, we take 1
from the tens place.

Now 11 is greater than 5, so we divide.

From the multiplication table of 5, we know
that 5 × 2 = 10, which is less than 11.

Write 2 in the tens place of the quotient.

11 – 10 = 1
23 Step 2: Bring down 5 from the ones place of the
5 115 dividend.
– 10↓
5 × 3 = 15
15

– 15 Write 3 in the ones place of the quotient.

00 15 – 15 = 0
So, each child planted 23 trees.

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