Page 106 - Math_Genius_V1.0_C2_Flipbook

E:\Working\Focus_Learning\Math_Genius_2_(09-10-2023)\Open_Files\Chap_05
\ 16-Feb-2024 Bharat Arora Proof-6 Reader’s Sign _______________________ Date __________

Multiplication with Regrouping

regrouping Ones

example 1: Multiply 26 by 3.

Solution: Write the numbers in columns according to the place value and then

multiply.

Step 1. Multiply the ones and regroup. Step 2. Multiply the tens and add the

6 × 3 = 18 ones t O carried over digit. t O

= 1 ten + 8 ones 1 3 × 2 = 6 tens 1

Write 8 in the ones column 2 6 6 tens + 1 ten = 7 tens 2 6
× 3 × 3
and carry over 1 to the tens 8 Write 7 in tens place. 7 8

column.

Thus, 26 × 3 = 78

regrouping tens

example 2: Multiply 53 by 3.

Solution: Write the numbers in columns according to their place value and then

multiply.

Step 1. Multiply the ones. Step 2. Multiply the tens and regroup.

3 × 3 = 9 ones 5 × 3 = 15 tens
Write 9 in the ones H t O = 10 tens + 5 tens H t O

column. = 1 hundred + 5 tens 1
5 3 Write 5 in the tens column 5 3
× 3 and 1 in the hundreds × 3
9 1 5 9
column.

Thus, 53 × 3 = 159

regrouping Ones and tens

example 3: Multiply 67 by 5.

Solution: Write the numbers in columns according to their place value and then

multiply.

104 Mathematics-2