
This trick is also one of the backbone mental calculation systems based on ancient Indian math principles. At its most fundamental, this strategy streamlines arithmetic movement by taking the mathematical ingredients of a problem as listed just above and systematically modifying them, but without changing the overall value of that same concept as a sum. This approach, in fact, enables young brains to skip complex, tedious written calculations altogether.
Doubling: Here, we take a number and scale it by 2, which means adding the same number to itself, or simply multiplying by 2.
Halving: This is taking a number and going right down to half it literally; I mean, in mathematical terms, divide by 2.
But abstract theories have to be simplified when you are teaching seven or eight-year-olds and turned into simple Maths tricks for kids. Children tackle two-digit numbers, simple word problems and the basic concepts of multiplication in Class 2. These mental shortcuts are totally on autopilot if you use visual, step-by-step methods.
Doubling can be explained for students in Class 2 by placing a number directly before a magic mirror; its identical twin will appear, and both must be added together.
1. Doubling Single-Digit Numbers
Ensure your child can instantly recall the doubles of numbers 1 to 9 before working on bigger calculations.
The double of 4 is simply 4 + 4 = 8.
The double of 7 is simply 7 + 7 = 14.
The double of 9 is simply 9 + 9 = 18.
2. Doubling Two-Digit Numbers Using Number Splitting
When numbers get larger, teach your child to split the number into tens and units first, then double each part before adding them back together.
Example: Find the double of 24.
Step 1: Split 24 into tens (20) and units (4).
Step 2: Double the tens part: The double of 20 is 40.
Step 3: Double the units part: The double of 4 is 8.
Step 4: Combine both answers together: 40 + 8 = 48.
You can even explain halving as two best friends like to eat from the same basket of goodies; you must share it equally.
1. Halving Simple Even Numbers
Example: Find the half of 12.
Imagine sharing 12 chocolates equally between 2 children. Each child receives 6 chocolates. Therefore, half of 12 is 6.
2. Halving Larger Two-Digit Numbers
Just like our doubling strategy β splitting numbers is non-bloggy, halving large figures for little peeps to handle.
Example: Find the half of 68.
Step 1: Split 68 into tens and units: 60 and 8.
Step 2: Halve the tens part: Half of 60 is 30.
Step 3: Halve the units part β half of 8 is 4.
Step 4: Add the two split answers together: 30 + 4 = 34.
Read More - Smart Classification Mental Maths Tricks for Class 2
The secret to turning these temporary mental shortcuts into permanent habits is regular practise. Here is a sheet to test your child on these mental calculation concepts. Urge them to do every question without writing, but entirely in their head.
Section A: Fast Doubling Tasks
Double the number 3 = _____
Double the number 11 = _____
Double the number 22 = ____
Double the number 34 = ______
Double the number 45 = _____
Section B: Fast Halving Tasks
Find half of the number 18 = _____
Find half of the number 26 = _____
Find half of the number 44 = _____
Find half of the number 88 = _____
Find half of the number 62 = _____
Section C: Word Problems for Real-Life Practise
Question 1: Rohan has 15 toy cars. His father buys him the exact same number of cars for his birthday, effectively doubling his toys. How many toy cars does Rohan own now?
Mental Pathway Hint: Split 15 into 10 and 5. Double of 10 is 20, and double of 5 is 10. Now add 20 + 10 together.
Answer: _____
Question 2: A primary school teacher brings a packet of 42 sweet biscuits to class. She gives exactly half of the biscuits to the girls and the other half to the boys. How many sweet biscuits do the girls receive?
Mental Pathway Hint: Split 42 into 40 and 2. Half of 40 is 20, and half of 2 is 1. Now add 20 + 1 together.
Answer: _____
Read More - 10-Second Addition Tricks for Class 2
Providing instruction to young school children on the modern application of ancient Vedic math systems provides ocean-in-depth cognitive benefits that serve their wider educational ambitions far beyond short-term classroom work.
Completely Removes Finger Counting: When these mental steps are consistently used, instead of struggling through tedious physical finger counting, children learn to replace this process with quick calculations.
Develops Advanced Number Sense: To break a number down into tens and units builds an innate understanding of how numbers relate to one another in different ways.
Speeds Up Class Performance: Converting typical multi-step Maths tasks into halves and doubles makes students complete school exam papers faster in advance.
Wipes Out Mathematical Anxiety: If arithmetic no longer appears like a scary task and mathematics is sort of a crazy sport, then children will stop fearing numbers.
Boosts Short-Term Working Memory: Mental Maths by tracking partial numbers as separate parts are added is also great for a developing brain.
Encourages Creative Problem Solving: Kids soon discover that there is more than one set way to arrive at an answer in Maths, and hence are very adaptive learners.
At home, you can learn simple Maths tricks, which is a great start, but structural guidance ensures that these helpful shortcuts become lifelong habits. CuriousJr online mental maths classes are customised to every child and aim at making numbers interactive, simple, and fun for students in class 2.
Live Learning Sessions: CuriousJr hosts individualised online classes where expert teachers walk students through numerals one step at a time across the screen.
Fun Gamified Format: The boring concept of Maths is replaced by games, keeping a high focus level and interest in the user.
Bypasses Rote Memorisation: CuriousJr doesnβt have kids memorising long tables to improve multiplication skills but teaches how they are made up.
Customised Class 2 Curriculum: Each lesson is specifically designed for the developmental level of a seven-year-old child.
Continuous Concept Tracking: For parents, real-time feedback provides a clear picture of how effectively their children are improving at calculations in terms of speed.

