3-Digit Subtraction without Regrouping

In 1st grade, we have learnt the subtraction of 1-digit and 2-digit numbers. Here, we will learn simple subtraction of 3-digit numbers without regrouping (borrowing).

We subtract 3-digit numbers in the same way as we subtract 2-digit numbers.

Let us subtract 345 from 689.

To perform the above subtraction, we take the following steps:

Step I: Write the given numbers in column form as shown.

Step II: Subtract the ones:

9 - 5 = 4

Write 4 under ones column.


Step III: Subtract the ten

8 - 4 = 4

Write 4 under tens column.


Step IV: Subtract the hundreds:

6 - 3 = 3

Write 3 under hundreds column.

3-Digit Subtraction without Regrouping



Three Digit Subtraction without Regrouping

Thus, the difference between 689 and 345 is 344.


Questions and Answers on Addition of 3-Digit Numbers Without Carrying:

1. Workout the following subtraction:

(i)

           H     T     O

           8     9     5

       -   6     4     3

       ___________

(ii)

           H     T     O

           6     4     1

       -   3     2     0

       ___________

(iii)

           H     T     O

           9     8     7

       -   6     5     3

       ___________

(iv)

           H     T     O

           8     7     3

       -   4     0     1

       ___________

(v)

           H     T     O

           7     5     8

       -   3     2     4

       ___________

(vi)

           H     T     O

           9     8     6

       -   5     6     4

       ___________

(vii)

           H     T     O

           3     9     4

       -   2     4     0

       ___________

(viii)

           H     T     O

           6     8     8

       -   3     7     8

       ___________

Answer:

1. (i) 252

(ii) 321

(iii) 334

(iv) 472

(v) 434

(vi) 422

(vii) 154

(viii) 310


2. Arrange in columns and add:

(i) 748 - 536

(ii) 891 - 640

(iii) 425 - 214

(iv) 675 - 451

(v) 549 - 304

(vi) 987 - 743


Answer:

2. (i) 212

(ii) 251

(iii) 211

(iv) 224

(v) 245

(vi) 244


3. Word Problems on 3-Digit Subtraction without Regrouping:

(i) A tree had 585 mangoes on it. The gardener plucked 372 mangoes from it. How many mangoes were left on the tree?

(ii) There are 598 students in a school. 236 students were present on Monday. How many were absent?

(iii) A train carried 984 passengers at a station, 472 of them got off. How many passengers were left in the train?

(iv) Rebecca earned 688 rupees during last week. She spent 154 rupees during the week. How many rupees did she save?

(v) A fruit-seller bought 789 apples from a wholesaler. 163 apples were found rotten. How many apples were good?

(vi) Sharon's comic book has 355 pages. She has read 321 pages. How many pages she still has to read?


Answer:

3. (i) 213

(ii) 362

(iii) 512

(iv) 534

(v) 626

(vi) 34

You might like these



2nd Grade Math Practice

From Addition of 3-Digit Numbers Without Carrying to HOME PAGE




Didn't find what you were looking for? Or want to know more information about Math Only Math. Use this Google Search to find what you need.



New! Comments

Have your say about what you just read! Leave me a comment in the box below. Ask a Question or Answer a Question.

Share this page: What’s this?

Recent Articles

  1. Successor and Predecessor | Successor of a Whole Number | Predecessor

    May 24, 24 06:42 PM

    Successor and Predecessor of a Whole Number
    The number that comes just before a number is called the predecessor. So, the predecessor of a given number is 1 less than the given number. Successor of a given number is 1 more than the given number…

    Read More

  2. Counting Natural Numbers | Definition of Natural Numbers | Counting

    May 24, 24 06:23 PM

    Natural numbers are all the numbers from 1 onwards, i.e., 1, 2, 3, 4, 5, …... and are used for counting. We know since our childhood we are using numbers 1, 2, 3, 4, 5, 6, ………..

    Read More

  3. Whole Numbers | Definition of Whole Numbers | Smallest Whole Number

    May 24, 24 06:22 PM

    The whole numbers are the counting numbers including 0. We have seen that the numbers 1, 2, 3, 4, 5, 6……. etc. are natural numbers. These natural numbers along with the number zero

    Read More

  4. Math Questions Answers | Solved Math Questions and Answers | Free Math

    May 24, 24 05:37 PM

    Math Questions Answers
    In math questions answers each questions are solved with explanation. The questions are based from different topics. Care has been taken to solve the questions in such a way that students

    Read More

  5. Estimating Sum and Difference | Reasonable Estimate | Procedure | Math

    May 24, 24 05:09 PM

    Estimating Sum or Difference
    The procedure of estimating sum and difference are in the following examples. Example 1: Estimate the sum 5290 + 17986 by estimating the numbers to their nearest (i) hundreds (ii) thousands.

    Read More