# 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 = ……….

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

II. (i) 20

(ii) 150

(iii) 10

(iv) 10

(v) 660

(vi) 1600

(vii) 82

(viii) 400

(ix) 62

## You might like these

• ### Worksheet on knowing Three-digit Numbers | Write the Numerals |Numbers

Practice the questions given in the worksheet on knowing three-digit numbers. The questions are based on numbers in words, numbers in figures, place value, expanded form, before number, after number

• ### Three Digit Numbers | What is Spike Abacus? | Abacus for Kids|3 Digits

Three digit numbers are from 100 to 999. We know that there are nine one-digit numbers, i.e., 1, 2, 3, 4, 5, 6, 7, 8 and 9. There are 90 two digit numbers i.e., from 10 to 99. One digit numbers are ma

3rd grade math worksheets is carefully planned and thoughtfully presented on mathematics for the students. Teachers and parents can also follow the worksheets to guide the students.

• ### 3rd Grade Division Worksheet | Division Facts | Multiplication Facts

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.

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

• ### Long Division | Division by One-Digit Divisor and Two-Digit Divisors

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.

• ### Division using Multiplication Tables | Division Tables |Multiplication

Let us learn division using tables. 1. Divide 35 ÷ 7 Solution: 1 × 7 = 7; 2 × 7 = 14; 3 × 7 = 21; 4 × 7 = 28; 5 × 7 = 35 Thus, there are 5 sevens in 35. So, 35 ÷ 7 = 5.

• ### Relationship between Multiplication and Division |Inverse Relationship

We know that multiplication is repeated addition and division is repeated subtraction. This means that multiplication and division are inverse operation. Let us understand this with the following example.

• ### Division Sharing and Grouping | Facts about Division | Basic Division

We will learn division sharing and grouping. Share eight strawberries between four children. Let us distribute strawberries equally to all the four children one by one.

• ### Worksheet on Facts about Division | Division with Small Numbers

Practice the worksheet on facts about division. We know, dividend is always equal to the product of the divisor and the quotient added to the remainder. This will help us to solve the given questions. 1. Fill in the blanks: (i) Division is __ subtraction.

• ### Facts about Division | Basic Division Facts | Learn Long Division

We have already learned division by repeated subtraction, equal sharing/distribution and by short division method. Now, we will read some facts about division to learn long division. 1. If the dividend is ‘zero’ then any number as a divisor will give the quotient as ‘zero’.

• ### Multiplying 3-Digit Number by 1-Digit Number | Three-Digit Multiplicat

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.

• ### 3rd Grade Subtraction Worksheet | 3-Digit Subtraction Worksheets | Ans

In 3th Grade Addition Worksheet we will solve how to subtract 3-digit numbers by expansion, subtraction of 3-digit numbers without regrouping, subtraction of 3-digit numbers with regrouping, properties of subtraction, estimating the difference and word problems on 3-digit

• ### Worksheet on Facts about Multiplication | Multiplication Sum | Answers

Practice the worksheet on facts about multiplication. We know in multiplication, the number being multiplied is called the multiplicand and the number by which it is being multiplied is called the multiplier. This will help us to solve the given questions.

• ### Worksheet on Subtraction Word Problems | Subtraction Word Problems

The activity provided in the third grade math worksheet on subtraction word problems is very important for the kids. Students need to read the questions carefully and then translate the information

From Multiplication by 10, 20, 30, 40, 50, 60, 70, 80, 90 to HOME PAGE