Multiplying 3Digit Number by 1Digit Number
Here we will learn
multiplying 3digit number by 1digit number.
In two different types we
will learn to multiply a threedigit number by a onedigit number.
Aultiplication of 3digit Number by 1digit Number with Regrouping:
1. Multiply 201 by 3
Step I: Arrange the numbers vertically. Step II: Multiply the digit at the ones place by 3. 1 × 3 = 3 ones Step III: Now multiply the digit at the tens place by 3. 0 × 3 = 0 tens Step IV: Now multiply the digit at the hundreds place by 3.
2 × 3 = 6 hundreds

Thus, 201 × 3 = 603

Multiplication of 3digit Number by 1digit Number with Regrouping:
1. Multiply 246 by 4
Step I: Arrange the numbers vertically. Step II: Multiply the digit at the ones place by 4. 6 × 4 = 24 = 2 tens + 4 ones Write 4 in the ones column and carry over 2 to the tens
column Step III: Now multiply the digit at the tens place by 4. 4 × 4 = 16 tens Now, 16 + 2 (carry over) = 18 tens = 1 hundred + 8 tens Step IV: Now multiply the digit at the hundreds place by 4. 2 × 4 = 8 hundreds
Now, 8 + 1 (carry over) = 9 hundred

Thus, 246 × 4 = 984

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

Thus, 453 × 6 = 2718

Questions and Answers on Multiplying 3Digit Number by 1Digit Number:
Multiplying 3Digit Number by 1Digit Number withb gt Regrouping:
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
Answer:
I. (i) 268
(ii) 960
(iii) 448
(iv) 602
(v) 404
(vi) 393
(vii) 880
(viii) 909
Multiplying 3Digit Number by 1Digit Number with Regrouping:
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
Answer:
II. (i) 948
(ii) 994
(iii) 940
(iv) 816
(v) 870
(vi) 378
(vii) 870
(viii) 785
III. Multiply the following:
(i) 467 × 8
(ii) 706 × 7
(iii) 982 × 9
(iv) 351 × 6
(v) 738 × 5
(vi) 288 × 7
Answer:
III. (i) 3736
(ii) 4942
(iii) 8838
(iv) 1806
(v) 3690
(vi) 2016
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