Page 63 - Maths Skill - 3

Multiplication 61

Step 3: Multiply 2 hundreds by 2. Challenge

2 hundreds × 2 = 4 hundreds I’m a mathematical operator that makes
Write 4 under hundreds column. number grow.
Repeated addition, as many of you know.
H T O Two numbers I always combine,

2 3 4 And the product is oh-so-fine.
× 2 What am I?

4 6 8
Thus, 234 × 2 = 468

With Regrouping

Let us multiply 342 by 7.

Arrange the numbers as per their place values and follow these steps:
Th H T O
Step 1: Multiply 2 ones by 7.
1
2 ones × 7 = 14 ones 3 4 2

14 ones = 10 ones + 4 ones = 1 ten + 4 ones × 7
Write 4 under ones column and carry over 1 ten to tens 4

column.

Th H T O
Step 2: Multiply 4 tens by 7. 2 1

4 tens × 7 = 28 tens 3 4 2

28 tens + 1 ten (carried over) = 29 tens × 7
9 4
29 tens = 20 tens + 9 tens = 2 hundreds + 9 tens

Write 9 under tens column and carry over 2 hundreds to hundreds column.

Step 3: Multiply 3 hundreds by 7.
Th H T O
3 hundreds × 7 = 21 hundreds 2 1

21 hundreds + 2 hundreds (carried over) = 23 hundreds 3 4 2

23 hundreds = 20 hundreds + 3 hundreds × 7
= 2 thousands + 3 hundreds 2 3 9 4

Write 3 under hundreds column and 2 in thousands column.

Thus, 342 × 7 = 2394