Page 89 - Math Skill - 2

Multiplication 87

Multiplication without Regrouping

2-digit Number by a 1-digit Number

Let us multiply 23 by 2.

Step 1: Multiply the ones by 2. Step 2: Multiply the tens by 2.

3 ones × 2 = 6 ones 2 tens × 2 = 4 tens

Write 6 in the Write 4 in the tens column.
ones column. Thus, 23 × 2 = 46

T O T O

2 3 2 3

× 2 × 2

6 4 6

Multiply and find the product.

T O T O T O T O

2 2 3 4 3 2 5 4

× 2 × 2 × 3 × 1

T O T O T O T O

1 1 2 4 2 0 3 3

× 6 × 2 × 3 × 2

3-digit Number by a 1-digit Number H T O

Let us multiply 213 by 3. 2 1 3

Step 1: Multiply the ones by 3. × 3

3 ones × 3 = 9 ones 9

Write 9 in the ones column.