Page 42 - Math Genius C5

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\\October 8, 2025 12:09 PM Bharat Arora P-9 Reader _________________________ Date: ___________________74

nearest Multiple

Observe the following multiplications:

(a) 4 × 19 = 4 × (20 – 1) = 4 × 20 – 4 × 1
Fast Check
= 80 – 4 Find the products of the
= 76 following numbers by finding

(b) 14 × 21 = 14 × (20 + 1) = 14 × 20 + 14 × 1 the nearest multiple.
= 280 + 14 (a) 75 × 31 (b) 99 × 15

= 294

Practice time 2C

1. Find the product.

( a) 2563 × 123 (b) 8905 × 236 (c) 7894 × 306 (d) 48,792 × 216

( e) 16,247 × 532 (f) 4578 × 1245 (g) 3486 × 2475 (h) 14,018 × 1045

2. Find the product without actual multiplication.

( a) 7557 × 10 = ______ (b) 78,051 × 100 = ______ (c) 4655 × 100 = ______

( d) 97,435 × 100 = ______ (e) 7263 × 100 = ______ (f) 5090 × 1000 = ______
3. Fill in the blanks using properties of multiplication.

( a) 5326 × 60 = ______ × 5326 (b) 2897 × ______ = 0

( c) (100 × 20) × 5 = (____ × ____) × 20 (d) 1 × ______ = 5566

( e) (500 + 75) × 16 = ______ × 16 + 75 × ______

4. Match the columns:

Column-I Column-II

(a) 8753 × 20 (i) 114600
(b) 2 × 5 × 483 (ii) 384500

(c) 4 × 573 × 50 (iii) 175060
(d) 10 × 3845 × 10 (iv) 4830
(e) 900 × 714 (v) 144000

(f) 4000 × 36 (vi) 642600

5. Find the product of the following by regrouping the terms.

( a) 250 × 8 × 100 (b) 5 × 195 × 20 (c) 1550 × 50 × 2

( d) 400 × 25 × 4 (e) 4365 × 20 × 5 (f) 10 × 3364 × 10

( g) 50 × 1000 × 2 (h) 4 × 6666 × 25 (i) 2005 × 50 × 20

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