Addition of Three 2-Digit Numbers
Here we will discuss about the addition of three 2-digit numbers.
Look at the following abacuses:
How many beads are there in all the three abacuses?
Step I: First add the beads in ones spike together.
3 + 2 + 3 = 8
Step II: Add the beads in tens spike together
4 + 1 + 4 = 9
Thus, 43 + 12 + 43 = 98.
Answer: There are 98 beads in all the three abacuses.
Adding Three 2-Digit Numbers with Regrouping:
1. Let us add 14, 26 and 35.
Write the numbers one below the other as shown.
Step I: Add the ones.
4 ones + 6 ones + 5 ones = 15 ones
Regroup: 15 ones = 1 ten and 5 ones
Write 5 in the ones place.
Carry over 1 ten and write it under 'T',
Step II: Add the tens.
1 ten (carried over) + 1 ten + 2 tens + 3 tens = 7 tens
Write 7 in the tens place.
The sum is 75.
2. John, Mack and Maria are reading books. John has read 35 pages, Mack has read 28 pages and Maria has read 24 pages. How many pages did they read in all?
35 + 28 + 24 = ?
Step I: Add the ones.
5 + 8 + 4 = 17 ones
Regroup and carry over 1 ten
Write 7 under ones column.
Step II: Add the tens.
3 + 2 + 2 + 1 = 8 tens
Write 8 under tens columns.
So, they read 87 pages altogether.
Worksheet on Addition of Three 2-Digit Numbers:
1. Add the following three 2-digit numbers without regrouping:
|
(i) |
T O 3 2 1 4 + 2 3
|
(ii) |
T O 1 5 2 2 + 5 1
|
|
(iii) |
T O 2 4 3 1 + 4 3
|
(iv) |
T O 3 3 4 2 + 2 4
|
Answer:
1. (i) 69
(ii) 88
(iii) 98
(iv) 99
2. Add the following three 2-digit numbers:
(i) 12 + 23 + 46 = _____
(ii) 24 + 15 + 18 = _____
(iii) 30 + 17 + 12 = _____
(iv) 48 + 21 + 17 = _____
(v) 62 + 11 + 18 = _____
(vi) 41 + 24 + 18 = _____
(vii) 56 + 16 + 26 = _____
(viii) 18 + 27 + 31 = _____
(ix) 12 + 48 + 24 = _____
(x) 27 + 11 + 39 = _____
(xi) 21 + 15 + 27 = _____
(xii) 18 + 22 + 36 = _____
(xiii) 26 + 25 + 27 = _____
(xiv) 33 + 49 + 9 = _____
(xv) 39 + 24 + 25 = _____
(xvi) 43 + 35 + 16 = _____
(xvii) 68 + 13 + 8 = _____
(xviii) 45 + 16 + 19 = _____
(xix) 18 + 24 + 29 = _____
(xx) 25 + 25 + 25 = _____
Answer:
2. (i) 81
(ii) 57
(iii) 59
(iv) 86
(v) 91
(vi) 83
(vii) 98
(viii) 76
(ix) 84
(x) 77
(xi) 63
(xii) 76
(xiii) 78
(xiv) 91
(xv) 88
(xvi) 94
(xvii) 89
(xviii) 80
(xix) 71
(xx) 75
From Adding 2-Digit Numbers 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.
Recent Articles
-
Place Value | Place, Place Value and Face Value | Grouping the Digits
Oct 04, 24 09:47 AM
The place value of a digit in a number is the value it holds to be at the place in the number. We know about the place value and face value of a digit and we will learn about it in details. We know th… -
Worksheet on Subtraction | Practice the Questions | Free Answers
Oct 04, 24 01:28 AM
In worksheet on subtraction, all grade students can practice the questions on subtracting numbers with more than two digits. This exercise sheet on subtraction can be practiced by the students -
Subtraction Word Problems - 2-Digit Numbers | Subtraction Problems
Oct 03, 24 03:22 PM
Understand the concept on subtraction word problems - 2-digit numbers for the second grade. Read the question carefully to subtract the two-digit numbers to find the differences and follow the -
Worksheet on Checking Subtraction Using Addition | Free Answers | Math
Oct 03, 24 02:22 PM
Here we can use addition to check the answer for the subtraction. Subtract ans check your answer. Find the difference and check your answer using addition. -
Check for Subtraction and Addition | Checking Subtraction | Problems
Oct 03, 24 01:13 PM
We will learn to check for subtraction and addition answers after solving. Difference of two numbers is correct when the sum of the subtrahend number and the difference is equal to the minuend.
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.