Neelakantha Bhanu holds the world record as the Fastest Human Calculator. He founded Bhanzu with one mission: to eliminate math anxiety and help every child discover the joy of mathematical thinking. The Bhanzu curriculum — refined through 60+ iterations — is built on his belief that understanding "why" always beats memorising "how."
By Grade 5, a lot of children have quietly built a workaround. They count on their fingers under the desk. They memorise "add a zero" for ×10. They guess, then check your face to see if they got it right.
It works — until the numbers get bigger. Then fractions, decimals, and long division arrive, the shortcuts stop holding, and a sharp child starts saying the six words no parent wants to hear.
Here is what is actually happening: your child is not bad at maths. They are missing the few ideas that make the numbers make sense. That gap is fixable — and it is exactly where we start.
I'm just not a maths person.
By Grade 5, a confident student can multiply and divide multi-digit numbers, work with fractions and decimals, estimate quickly, and spot number patterns — mostly in their head. Aligned with Grade 5 standards (CCSS 5.NBT, NCERT Class 5, UK National Curriculum Year 5), Bhanzu classes build:
With the reasoning behind the shift, not "add a zero" — so it works for decimals too.
Using partitioning and the distributive idea: 34 × 5 becomes (30 × 5) + (4 × 5).
Reading and comparing numbers into the thousands, and rounding decimals with confidence.
Comparing, ordering, and converting between them fluently — not as separate topics.
Spotting factors and multiples quickly, and recognising which numbers are prime.
Estimating first, then asking "is my answer reasonable?" — the habit that catches mistakes.
Reading the maths out of the language, and choosing the right operation with confidence.
Grade 5 number sense is the launchpad for fractions, algebra and Grade 6 — solid now makes later far easier.
Most mental maths practice is a race — more worksheets, faster drills, tricks to shave off seconds. It can lift speed for a while. It rarely lifts understanding — and the moment a problem looks unfamiliar, the speed disappears with it.
Before your child computes 34 × 5 quickly, they learn why it's the same as (30 × 5) + (4 × 5). Once that clicks, they can take apart any number — 47 × 6, 128 × 4 — without being taught each one separately.
Book a free demo and watch your Grade 5 child work through a real mental-maths problem with a live Bhanzu trainer — and get a Level 0 read on where they stand.
A short Knowledge Check finds the real gap — the exact idea your child skipped — instead of assuming their school grade.
Your child joins an expert trainer and a handful of peers from around the world, two 50-minute classes a week.
Brain Gym gives unlimited practice, and every session is recorded, so your child can revisit anything, any time.
A multi-stage selection process ensures only the top 2% of applicants enter your child's classroom. Every trainer holds a Bachelor's or Master's degree in Math, Economics, Physics, or Engineering — plus 100+ hours of Bhanzu methodology training. Here's what our tutors have to say about teaching mental maths at Bhanzu.
Every child is different. Book a free demo and a live Bhanzu trainer will show you exactly where your Grade 5 child stands — or talk to a learning counsellor first. No credit card, no pressure.
Mental maths for Grade 5 is solving problems — multi-digit multiplication and division, fractions, decimals, estimation — in your head, quickly and accurately. At Bhanzu, that speed comes from understanding number patterns, so it holds up when the problems get harder.
The short version: multiplying and dividing by 10s and 100s with real understanding, breaking apart multi-digit multiplication, comparing fractions and decimals, and estimating before calculating.
No. Abacus and Vedic maths are specific speed techniques, and Bhanzu does not teach either. Bhanzu builds mental maths through understanding number patterns and place value — the reasoning your child can carry into fractions, algebra, and school maths, not just a standalone trick.
Keep it low-pressure and pattern-based. Ask "how did you get that?" more than "is that right?" Play with breaking numbers apart out loud at the dinner table (48 is 40 and 8). And skip the "add a zero" shortcut — ask why the digits move instead.
It varies with where your child is starting. Many Bhanzu students reach the 32 × 43 in-under-45-seconds mark within their first six months — but the more important shift, a child who stops dreading maths, often shows up sooner.
Yes — every class is live, taught by a real trainer in a small batch, with recordings available afterward.
Tap any "Book a Free Demo Class" button on this page. You will pick a slot, meet a live trainer, and get a Level 0 read on where your child is — no credit card needed.
See your child work through a real mental-maths problem with a live Bhanzu trainer before you decide anything. The first class is free, no credit card is required, and you will leave knowing exactly where your child stands.