Page 139 - Demo

138 Arrow-Puffin-3_Semester-1 Maths Example : 7 x 5 = 35 The product remains the same. 5 x 7 = 35%u2022 If three or more numbers are multiplied in any order, the product remains the same. Example : (2 x 4) x 6 = 2 x (4 x 6) or 8 x 6 = 2 x 24 48 = 48Multiplication by 10To multiply any number by 10 or its multiples, add a zero to the answer and then multiply the number by the remaining digits of the multiplier.Example 1: 5 x 1 0 Example 2: 6 x 2 0%u2022 Multiply 5 %u00d7 1 = 5 %u2022 Multiply 6 %u00d7 2 = 12%u2022 Write 0 in the ones place. %u2022 Write 0 in the ones place.Therefore, 5 %u00d7 10 = 50 Therefore, 6 %u00d7 20 = 120Multiplication by 100To multiply any number by 100 or its multiples, add two zeroes to the answer and multiply the number by the remaining digits of the multiplier.Example : 1 4 x 1 00 %u2022 Multiply 4 x 1 = 4 %u2022 Write 0 in the ones and tens place.%u0009 %u0009%u0009 Therefore, 4 x 100 = 400Let's Understand Conceptual UnderstandingLet's Understand Conceptual Understanding