Q1 of 42 Page 4

Write the following numbers in generalized form:

39, 52, 106, 359, 628, 3458, 9502, 7000.

(i) 39 = 3 × 10 + 9 × 100


= 3 × 101 + 9 × 1


(∵ 100 = 1)


(ii) 52 = 5 × 10 + 2× 1


= 5 × 101 + 2 × 100


(iii) 106 = 1 × 100 + 0 × 10 + 6 × 1


= 1 × 102 + 0 × 101 + 6 × 100


(iv) 359 = 3 × 100 + 5 × 10 + 9 × 1


= 3 × 102 + 5 × 101 + 9 × 100


(v) 628 = 6 × 100 + 2 × 10 + 8 × 1


= 6 × 102 + 2 × 101+ 8 × 100


(vi) 3458 = 3 × 1000 + 4 × 100+ 5 × 10 + 8 × 1


= 3 × 103 + 4 × 102 + 5 × 101 + 8 × 100


(vii) 9502 = 9 × 1000 + 5 × 100 + 0 × 10 + 2 × 1


= 9 × 103 + 5 × 102 + 0 × 101 + 2 × 100


(vii) 7000 = 7 × 1000 + 0 × 100 + 0× 10 + 0 × 1


= 7 × 103 + 0 × 10 2 + 0 × 101 +0 × 100


More from this chapter

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2

Write the following in the decimal 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).

 1

In the following, find the digits represented by the letters:

(i) (ii)


(iii) (iv)


(v) (vi)

2

In the adjacent sum, A, B, C are consecutive digits. In the third row, A, B, C appear in some order. Find A, B, C.

 1

Find the quotient and the remainder when each of the following numbers is divided by 13.

8, 31, 44, 85, 1220.