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
-
2nd Grade Geometry Worksheet | Plane and Solid Shapes | Point | Line
Dec 12, 24 09:20 AM
2nd grade geometry worksheet -
Types of Lines |Straight Lines|Curved Lines|Horizontal Lines| Vertical
Dec 09, 24 10:39 PM
What are the different types of lines? There are two different kinds of lines. (i) Straight line and (ii) Curved line. There are three different types of straight lines. (i) Horizontal lines, (ii) Ver… -
Points and Line Segment | Two Points in a Curved Surface | Curve Line
Dec 09, 24 01:08 AM
We will discuss here about points and line segment. We know when two lines meet we get a point. When two points on a plane surface are joined, a straight line segment is obtained. -
Solid Shapes | Basic Geometric Shapes | Common Solid Figures | Plane
Dec 08, 24 11:19 PM
We will discuss about basic solid shapes. We see a variety of solid objects in our surroundings. Solid objects have one or more shapes like the following. Match the objects with similar shape. -
2nd grade math Worksheets | Free Math Worksheets | By Grade and Topic
Dec 07, 24 03:38 PM
2nd grade math worksheets is carefully planned and thoughtfully presented on mathematics for the students.
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.