Multiplication Strategies

Mental Math Multiplication for Class 2 Maths

In mathematics, mental math is a group of skills that helps students to do math mentally. In this chapter, the students will learn about mental math multiplication for class 2. Students can get a better concept of math by using fast multiplication tricks.

In this learning concept, the students will learn to

• Apply multiplication tricks by repeated addition.
• Analyse the easy multiplication tricks by breaking the numbers.
• Remember the multiplication table of numbers.

Each concept is explained to class 2 maths students using illustrations, examples, and mind maps. Students can assess their learning by solving the two printable worksheets given at the pages’ end.

Download the mental math multiplication worksheet for class 2 and check the solutions for the concept of mental math multiplication provided in PDF format.

Let us learn some easy and fast ways of multiplication.

1. Multiplication Tricks by Repeated Addition:

We can multiply single digit numbers using the concept of repeated addition.

Example:

Multiply 4 by 5.

Solution:


2. Easy Multiplication Tricks by Breaking the Number:

If in case the you can’t remember the multiplication table of bigger number, then you can break down the number and then get the product.

Example:

Multiply 7 by 6.

Solution:


3. Multiplication by the Smaller Number.

Use the multiplication table of smaller digit.

The product of 7 × 3 is same as the product of 3 × 7.

Example:

Multiply 9 by 2.

Solution:


4. Multiplication by 10

If we multiply any number by 10 then we write the number and after that we write one zero.

Example:

Multiply 9 by 10.

Multiply 20 by 10.

Solution:


5. Multiplication Tricks for a 2-Digit Number That Ends with Zero by 1-Digit.

Follow the step given below:

Step 1:

Multiply the ten digit by the multiplier.

Step 2:

Write 1 zero after the product.

Example:

Multiply 30 by 6.

Solution:


6. Multiplication of Two-Digit Numbers by 1-Digit.

Follow the step given below:

Step 1:

Multiply 10 times the ten digits by the multiplier.

Step 2:

Multiply the unit digit by the multiplier.

Step 3:

Add both the products obtained in the step 1 and step 2.

Example:

Multiply 24 by 5.

Solution:

• Firstly, multiply 20 by 5.
• Secondly, multiply 4 by 5.
• Thirdly, add both the products.

Multiplication Tricks by Numbers

1. Rule for Multiplying a 1-Digit Number by 2.

Double the digit to multiply it with 2.

Add the number to itself to make it double.

Example:

Multiply 2 by 8.

Solution:


2. Rule for Multiplying a 2-Digit Number by 2:

From the left, add the digits to itself with carrying.

Example:

Multiply 24 by 2.

Solution:


3. Rule for Multiplying by 4.

Use the concept of double and double to multiply by 4.

Example:

Multiply 8 by 4.

Solution: