Page 90 - Math Skill - 2

88 Maths

Step 2: Multiply the tens by 3. H T O

1 ten × 3 = 3 tens 2 1 3

Write 3 in the tens column. × 3

Step 3: Multiply the hundreds by 3. H T O 3 9

2 hundreds × 3 = 6 hundreds 2 1 3

Write 6 in the hundreds column. × 3

Thus, 213 × 3 = 639 6 3 9

Find the product.

H T O H T O H T O H T O

2 1 3 1 2 2 4 0 1 2 2 2

× 2 × 4 × 2 × 3

H T O H T O H T O H T O

2 1 0 2 1 4 1 1 0 2 2 0
× 4 × 2 × 5 × 3

Multiplication with Regrouping

2-digit Number by a 1-digit Number

Let us multiply 36 by 4.

Step 1: Multiply the ones by 4.
H T O
6 ones × 4 = 24 ones 2

24 ones = 2 tens + 4 ones 3 6

Write 4 in the ones column and carry over × 4
4
2 tens to the tens column.