Multiplication by 10, 20, 30, 40, 50, 60, 70, 80, 90
Multiplication by 10
To multiply a number by 10, we simply put a zero to the
right of the number.
1 × 10 = 10
2 × 10 = 20
3 × 10 = 30
4 × 10 = 40
5 × 10 = 50
6 × 10 = 60
7 × 10 =70
8 × 10 = 80
9 × 10 = 90
Multiplication by 20
To multiply a number by 20 we multiply the
given number by 2 and put one zero to the right of product.
1 × 20 = 20
2 × 20 = 40
3 × 20 = 60
4 × 20 = 80
5 × 20 = 100
6 × 20 = 120
7 × 20 = 140
8 × 20 = 160
9 × 20 = 180
Multiplication by 30
To multiply a number by 30 we multiply the given number by 3 and put one zero to the right of product.
1 × 30 = 30
2 × 30 = 60
3 × 30 = 90
4 × 30 = 120
5 × 30 = 150
6 × 30 = 180
7 × 30 = 210
8 × 30 = 240
9 × 30 = 270
Multiplication by 40
To multiply a number by 40 we multiply the given number by 4 and put one zero to the right of product.
1 × 40 = 40
2 × 40 = 80
3 × 40 = 120
4 × 40 = 160
5 × 40 = 200
6 × 40 = 240
7 × 40 = 280
8 × 40 = 320
9 × 40 = 360
Multiplication by 50
To multiply a number by 50 we multiply the given number by 5 and put one zero to the right of product.
1 × 50 = 50
2 × 50 = 100
3 × 50 = 150
4 × 50 = 200
5 × 50 = 250
6 × 50 = 300
7 × 50 = 350
8 × 50 = 400
9 × 50 = 450
Multiplication by 60
To multiply a number by 60 we multiply the given number by 6 and put one zero to the right of product.
1 × 60 = 60
2 × 60 = 120
3 × 60 = 180
4 × 60 = 240
5 × 60 = 300
6 × 60 = 360
7 × 60 = 420
8 × 60 = 480
9 × 60 = 540
Multiplication by 70
To multiply a number by 70 we multiply the given number by 7 and put one zero to the right of product.
1 × 70 = 70
2 × 70 = 140
3 × 70 = 210
4 × 70 = 280
5 × 70 = 350
6 × 70 = 420
7 × 70 = 490
8 × 70 = 560
9 × 70 = 630
Multiplication by 80
To multiply a number by 80 we multiply the given number by 8 and put one zero to the right of product.
1 × 80 = 80
2 × 80 = 160
3 × 80 = 240
4 × 80 = 320
5 × 80 = 400
6 × 80 = 480
7 × 80 = 560
8 × 80 = 640
9 × 80 = 720
Multiplication by 90
To multiply a number by 90 we multiply the given number by 9 and put one zero to the right of product.
1 × 90 = 90
2 × 90 = 180
3 × 90 = 270
4 × 90 = 360
5 × 90 = 450
6 × 90 = 540
7 × 90 = 630
8 × 90 = 720
9 × 90 = 810
Questions and Answers on Multiplication by 10, 20, 30, 40, 50, 60, 70, 80, 90:
I. Find the product:
(i) 32 × 20 = ……….
(ii) 26 × 10 = ……….
(iii) 24 × 30 = ……….
(iv) 25 × 20 = ……….
(v) 9 × 70 = ……….
(vi) 4 × 80 = ……….
(vii) 22 × 10 = ……….
(viii) 18 × 40 = ……….
(ix) 8 × 90 = ……….
Answer:
I. (i) 640
(ii) 20
(iii) 720
(iv) 500
(v) 630
(vi) 320
(vii) 220
(viii) 720
(ix) 720
II. Fill in the blanks:
(i) 7 × …….. = 140
(ii) 30 × 5 = ……..
(iii) 50 × …….. = 500
(iv) …….. × 25 = 250
(v) 22 × 30 = ……..
(vi) 20 × 80 = ……..
(vii) 10 × …….. = 820
(viii) 5 × 80 = ……..
(ix) …….. × 10 = 620
Answer:
II. (i) 20
(ii) 150
(iii) 10
(iv) 10
(v) 660
(vi) 1600
(vii) 82
(viii) 400
(ix) 62
You might like these
We will learn the basic knowledge for estimating a sum. Here we will learn an easy way to estimate a sum of two numbers by rounding. In case of two digit numbers we can only round the number
We will learn Addition of 3-Digit Numbers without Regrouping. We know how to do addition of 3-digit numbers without regrouping. Let us recall it solving some examples. Solved Examples on Addition of 3-Digit Numbers without Regrouping 1. The shopkeeper has 153 packets
What are the rules for the comparison of three-digit numbers? (i) The numbers having less than three digits are always smaller than the numbers having three digits as:
Worksheet on third grade fractions is a great resource for children to practice the different types of questions on fraction. The questions are based on identifying the numerator and denominator
How to find fraction as a part of collection? Let there be 14 rectangles forming a box or rectangle. Thus, it can be said that there is a collection of 14 rectangles, 2 rectangles in each row. If it is folded into two halves, each half will have 7 rectangles. So, we can say
How is fraction as a part of a whole? We know, a fraction means a part. So, fraction is the part of a whole object. Thus, a fraction is the part of a collection or collections of objects. A fraction is a part of a whole number say 1, 2, 3, 4, ... 150 ... etc.
In 3rd Grade Multiplication Worksheet we will solve how to divide using multiplication tables, relationship between multiplication and division, problems on properties of division, long division method, word problems on long division.
As we know that the division is to distribute a given value or quantity into groups having equal values. In long division, values at the individual place (Thousands, Hundreds, Tens, Ones) are dividend one at a time starting with the highest place.
In 3rd Grade Multiplication Worksheet we will solve how to multiply 2-digit number by 1-digit number without regrouping, multiply 2-digit number by 1-digit number with regrouping, multiply 3-digit number by 1-digit number without regrouping, multiply 3-digit number
We will learn how to solve the word problems on multiplication by 2-digit number. Here we will apply the same process when we multiply a 2-digit number by a 2-digit number. Solved examples:
"We will learn how to multiply 3-digit numbers by 2-digit numbers.
We will learn how to multiply 2-digit numbers by 2-digit numbers.
We will learn how to solve the word problems on multiplication by 1-digit number. Here we will apply the same process when we multiply 2-digit number by 1-digit number and 3-digit number by 1-digit number.
Here we will learn multiplying 3-digit number by 1-digit number. In two different ways we will learn to multiply a two-digit number by a one-digit number. 1. Multiply 201 by 3 Step I: Arrange the numbers vertically. Step II: Multiply the digit at the ones place by 3.
We have learnt multiplication of numbers with 2digit multiplier. Now, we will learn more. Let us know some facts about multiplication. 1. In multiplication, the number being multiplied is called the multiplicand and the number by which it is being multiplied is called the
3rd Grade Math Lessons
From Multiplication by 10, 20, 30, 40, 50, 60, 70, 80, 90 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.
Share this page:
What’s this?
|
|
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.