Page 68 - ICSE Math 4

3. Divide the following using repeated subtrac on.
(a) 14 ÷ 2 (b) 32 ÷ 8 (c) 40 ÷ 10 (d) 24 ÷ 3

(e) 28 ÷ 4 (f) 55 ÷ 11 (g) 36 ÷ 3 (h) 44 ÷ 4

Division Facts

• When a number is divided by 1, we get the number itself as the quo ent.

For example, 12 ÷ 1 = 12 and 225 ÷ 1 = 225.
• When a number is divided by itself, we get 1 as the quo ent.

For example, 19 ÷ 19 = 1 and 430 ÷ 430 = 1. Mental Maths

• When 0 is divided by any number, we get 0 Choose the correct option.
as the quo ent. 1. 168  168 = _________
For example, 0 ÷ 79 = 0 and 0 ÷ 653 = 0. (a) 1 (b) 0 (c) 11 (d) 10

• Any number ending in 0 can be divided 2. 5,698  1 = _________
by 10. (a) 5,968 (b) 5,698 (c) 1 (d) 5,689
3. 0  220 = _________
For example, 50  10 = 5 and 90  10 = 9.
(a) 220 (b) 1 (c) 0 (d) Not possible
• It is not possible to divide a number by 0.
4. 897  1 = _________
(a) 879 (b) 897 (c) 1 (d) 0

Exercise 6.3

1. Fill in the blanks.

(a) 462 ÷ 1 = _____ (b) 364 ÷ 0 = _____ (c) 28 ÷ 28 = _____

(d) 0 ÷ 6,773 = _____ (e) 9,009 ÷ 9,009 = _____ (f) 5,167 ÷ 1 = _____

2. Fill in the boxes.

(a) 718 ÷ = 718 (b) 0 ÷ 7,425 = (c) ÷ 1,132 = 1

(d) 5,421 ÷ 1 = (e) 9,378 ÷ 9,378 = (f) 0 ÷ = 0

Multiplication and Division Facts

We know that there are two mul plica on facts for every division fact.

For example, mul plica on facts for 63  7 = 9 are 7 × 9 = 63 and 9 × 7 = 63.
Example 3: For 30  6 = 5 write the mul plica on facts.

Solu on: The mul plica on facts for 30  6 = 5 can be found by saying the table of 6.

We find that, 5 × 6 = 30. So, 30  6 = 5.
Therefore, 5 × 6 = 30 and 6 × 5 = 30 are the mul plica on facts for 30  6 = 5.

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