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Standard VIII

Mathematics

Distributive Property of Rational Numbers

Write the fol...

Question

Write the following in the normal form:

(i) (5 × 10) + (6 × 1); (ii) (7 × 100) + (5 × 10) + (8 × 1); (iii) (6 × 1000) + (5 × 10) + (8 × 1); (iv) (7 × 1000) + (6 × 1); (v) (1 × 1000) + (1 × 10) .

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Solution

(i) (5 × 10) + (6 × 1) = 50 + 6 = 56

(ii) (7 × 100) + (5 × 10) + (8 × 1) = 700 + 50 + 8 = 758

(iii) (6 × 1000) + (5 × 10) + (8 × 1) = 6000 + 50 + 8 = 6058

(iv) (7 × 1000) + (6 × 1) = 7000 + 6 = 7006

(v) (1 × 1000) + (1 × 10) = 1000 + 10 = 1010

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Similar questions

Q. Write the following in the normal form:
(i)

(5 \times 10) + (6 \times 1)

;

(ii)

(7 \times 100) + (5 \times 100) + (8 \times 1)

;

(iii)

(6 \times 1000) + (5 \times 10) + (8 \times 1)

;

(iv)

(7 \times 1000) + (6 \times 1)

;

(v)

(1 \times 1000) + (1 \times 100)

Q. Write the corresponding numeral for each of the following:
(i) 7 × 10000 + 2 × 1000 + 5 × 100 + 9 × 10 + 6 × 1
(ii) 4 × 100000 + 5 × 1000 + 1 × 100 + 7 × 1
(iii) 8 × 1000000 + 3 × 1000 + 6 × 1
(iv) 5 × 10000000 + 7 × 1000000 + 8 × 1000 + 9 × 10 + 4

Q. Write the following in the usual form.

i)

100 \times 8 + 10 \times 5 + 9

ii)

10000 \times 1 + 100 \times 5 + 10 \times 2

iii)

1000 \times 5 + 10 \times 1 + 3

iv)

100000 \times 3 + 1000 \times 1 + 10 \times 3

[4 MARKS]

Question 4

The expanded form of the number 9578 is
(A) 9 × 10000 + 5 × 1000 + 7 × 10 + 8 × 1
(B) 9 × 1000 + 5 × 100 + 7 × 10 + 8 × 1
(C) 9 × 1000 + 57 × 10 + 8 × 1
(D) 9 × 100 + 5 × 100 + 7 × 10 + 8 × 1

Q. If

20 - 10

means

200

8 \div 4

means

12,

6 \times 2

means

4,

5 + 5

means

1

, then

100 - 10 \times 1000 \div 1000 + 100 \times 10 = ?

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Write the following in the normal form: (i) (5 × 10) + (6 × 1); (ii) (7 × 100) + (5 × 10) + (8 × 1); (iii) (6 × 1000) + (5 × 10) + (8 × 1); (iv) (7 × 1000) + (6 × 1); (v) (1 × 1000) + (1 × 10) .

(i) (5 × 10) + (6 × 1) = 50 + 6 = 56 (ii) (7 × 100) + (5 × 10) + (8 × 1) = 700 + 50 + 8 = 758 (iii) (6 × 1000) + (5 × 10) + (8 × 1) = 6000 + 50 + 8 = 6058 (iv) (7 × 1000) + (6 × 1) = 7000 + 6 = 7006 (v) (1 × 1000) + (1 × 10) = 1000 + 10 = 1010

Write the following in the normal form:

(i) (5 × 10) + (6 × 1); (ii) (7 × 100) + (5 × 10) + (8 × 1); (iii) (6 × 1000) + (5 × 10) + (8 × 1); (iv) (7 × 1000) + (6 × 1); (v) (1 × 1000) + (1 × 10) .

(i) (5 × 10) + (6 × 1) = 50 + 6 = 56

(ii) (7 × 100) + (5 × 10) + (8 × 1) = 700 + 50 + 8 = 758

(iii) (6 × 1000) + (5 × 10) + (8 × 1) = 6000 + 50 + 8 = 6058

(iv) (7 × 1000) + (6 × 1) = 7000 + 6 = 7006

(v) (1 × 1000) + (1 × 10) = 1000 + 10 = 1010