Here we learn to multiply the 3-digit number by the 1-digit number.

In two different types, we learn to multiply a three-digit number by a single-digit number.

1. Multiply 201 by 3

 Step I: Arrange the numbers vertically. Step II: Multiply the number in the ones place by 3. 1 × 3 = 3 ones Step III: Now multiply the number in the tens place by 3. 0 × 3 = 0 tens Step IV: Now multiply the digit in the hundreds by 3. 2 × 3 = 6 hundred So 201 × 3 = 603

Multiplication of 3-digit number by 1-digit number with regrouping:

1. Multiply 246 by 4

 Step I: Arrange the numbers vertically. Step II: Multiply the number in the ones place by 4. 6 × 4 = 24 = 2 tens + 4 ones Write 4 in the units column and transfer 2 to the tens column Step III: Now multiply the number in the tens place by 4. 4 × 4 = 16 tens Well, 16 + 2 (transferred) = 18 tens = 1 hundred + 8 tens Step IV: Now multiply the digit in the hundreds by 4. 2 × 4 = 8 hundred Well, 8 + 1 (transferred) = 9 hundred So 246 × 4 = 984

2. Multiply 453 by 6.

 Step I: Arrange the numbers vertically. Step II: Multiply the number in the ones place by 6. 6 × 3 = 18 = 1 tens + 8 ones Write 8 in the units column and transfer 1 to the tens column Step III: Now multiply the number in the tens place by 6. 6 × 5 = 30 tens Well, 30 + 1 (transferred) = 31 tens = 3 hundred + 1 tens Write 1 in the tens column and transfer 3 in the hundreds column. Step IV: Now multiply the digit in the hundreds by 6. 6 × 4 = 24 hundred Well, 24 + 3 (transferred) = 27 hundreds = 2 thousands and 7 hundreds. Write 7 in the tens and 2 in the thousands. So 453 × 6 = 2718

Questions and answers about multiplying a 3-digit number by a 1-digit number:

I. Multiply the following:

(i) 134 × 2

(ii) 320 × 3

(iii) 112 × 4

(iv) 301 × 2

(v) 202 × 2

(vi) 131 × 3

(vii) 220 × 4

(viii) 303 × 3

I. (i) 134 × 2

(ii) 320 × 3

(iii) 112 × 4

(iv) 301 × 2

(v) 202 × 2

(vi) 131 × 3

(vii) 220 × 4

(viii) 303 × 3

II. Multiply the following:

(i) 237 × 4

(ii) 142 × 7

(iii) 235 × 4

(iv) 408 × 2

(v) 145 × 6

(vi) 126 × 3

(vii) 435 × 2

(viii) 157 × 5

III. Multiply the following:

(i) 467 × 8

(ii) 706 × 7

(iii) 982 × 9

(iv) 351 × 6

(v) 738 × 5

(vi) 288 × 7