Mental Maths for Grade 2

Grade 2 is where finger counting either fades or hardens into a habit. Here is exactly what a seven-year-old should be able to do in their head, and how Bhanzu's live classes build it, from the why up.

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Built from the why, not rote: Your child learns to break numbers apart and put them back together, so 8 + 7 becomes 10 + 5 instead of a count.
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Live, small groups of six: Taught by top-2% teachers, with a few well-chosen problems instead of a hundred repetitive sums.
✓ Free first class · no credit card · see exactly where your child's mental maths stands
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70,000+
Students Globally
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4.93/5
Classroom Rating
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20+
Countries
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Top 2%
Teacher Selection
❤️
86%
Parent Satisfaction

Grade 2 Is Where Finger Counting Stops Scaling

In Grade 1, counting on fingers works. The numbers are small enough that it costs a child nothing.

Grade 2 changes the arithmetic underneath. Two-digit numbers arrive, regrouping arrives, and a child who still counts every step is doing four times the mental work of a child who has stopped. Same answers, for now. Much more effort.

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The problem is almost never ability. It is that counting uses up all the room a child needs for thinking.

Free up that room, and two-digit addition stops feeling heavy.

Neelakantha Bhanu ,  World's Fastest Human Calculator, Founder of Bhanzu

Neelakantha Bhanu Prakash

World's Fastest Human Calculator · Founder, Bhanzu

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." That is exactly the difference between a Grade 2 child who counts and one who just knows.

What a Grade 2 Should Be Able to Do in Their Head

The mental maths a seven-year-old should be building toward, each one taught by Bhanzu from understanding first, so it sticks.

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Number bonds to 10 and 20

Every pair that makes ten, recalled instantly. This is the foundation everything else stands on.

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Addition and subtraction within 20

Recalled, not recounted. By the end of Grade 2 these facts should come from memory.

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Two-digit addition and subtraction within 100

34 + 25 and 60 − 18 handled mentally, using place value rather than a written column.

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Make ten and bridging

Turning 8 + 7 into 10 + 5, and 13 − 5 into 13 − 3 − 2. The two moves that do most of the work.

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Doubles and near doubles

6 + 6 known instantly, so 6 + 7 costs nothing extra.

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Place value partitioning

Splitting 47 into 40 and 7, then putting it back. This is what makes bigger numbers possible.

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Skip counting in 2s, 5s and 10s

Forwards and backwards, from any starting number, the seed of times tables.

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Skills that build on each other

Mental maths is cumulative. A child shaky on bonds to ten will struggle with everything above them.

These skills build on each other. A gap in an earlier one (like number bonds) is exactly what makes a later skill feel impossible, which is why Bhanzu fixes the base first.

How Bhanzu Builds Mental Maths for Grade 2 , From the Why

Bhanzu does not drill these as isolated tricks. Each one is taught from understanding first.

Break it apart, don't count it up

A number can be split and rebuilt, and that one idea transfers everywhere

A child learns that a number can be split and rebuilt, which is why 8 + 7 becomes 10 + 5, and why the same move still works at 38 + 7 and 138 + 7. They learn why ten is the number we bridge through, so it transfers instead of staying a rule.

Classes are live, in small groups of six, taught by top-2% teachers. Your child solves a few well-chosen problems covering every variation, rather than a hundred repetitive ones.

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Format

Live small groups of six, every child gets heard, not lost in a crowd.

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Practice

A few problems covering every variation, not a hundred repetitive sums.

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Outcome

Speed that comes from genuine number sense, and lasts.

See Which Grade 2 Mental Maths Skills Are Solid

A free class shows you exactly where your Grade 2 child stands, which skills are strong, which need work, and how Bhanzu builds them from the why up.

12 Mental Maths Questions for Grade 2

Ask them out loud. No paper. Watch how your child answers, not just whether the answer is right.

19 + 615
215 − 87
37 + 714
47 + 815
540 + 3070
662 + 1072
7Ten less than 8575
8Split 76 into tens and ones70 and 6
934 + 2559
1058 − 2038
1129 + 1544
12Skip count by 5s, 35 to 6035,40,45,50,55,60
Question 4 is the tell. A child who says "seven plus seven is fourteen, so this is fifteen" has a strategy. A child who pauses and then answers has counted.

Rote Drilling vs Bhanzu Mental Maths for Grade 2

★★★★★ 4.93 / 5: rated by children after every live class, across 20+ countries
Drilling mental maths
Bhanzu mental maths
Practise sums until they get faster
Replace counting with number bonds
"Borrow and cross out" for subtraction
Place value understood first
Chant tables
Construct tables from patterns
A hundred repetitive sums
A few problems covering every variation
Speed as the only goal
Speed from genuine number sense
Tests with marks
Knowledge Checks with no penalty

How to Build Your Grade 2 Child's Mental Maths

1

Book a free class

Tell us where your Grade 2 child is: what is solid, and what feels slow or shaky.

2

Find the gaps

Bhanzu checks which skills are secure and which need work, so classes start exactly where your child is.

3

Build weekly

Two live 50-minute classes a week, strengthening each skill from the why up.

How Bhanzu Helps

Choose the program that fits your child, from a focused start on the foundations to complete mastery that carries into the years ahead.

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Math Star
30 Sessions · 4 Months
Best for: a focused start on the foundations
  • 4X quicker in arithmetic
  • Strong arithmetic foundation
  • Cognitive ability development
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Math Wizard
150 Sessions · 18 Months
Everything in Math Champion +
  • Real-life applications of math
  • Application of math in various STEM fields
  • Logical thinking and systemic problem solving
  • Cognitive skill mastery
  • Bhanzu's proprietary methods
Every class includes: a Level 0 diagnostic, a top-2% teacher, small 1:6 batches, unlimited Brain Gym practice, on-demand recordings, and the Bhanzu Buddy voice doubt-solver.

Not Sure Which Fits? Talk to a Counsellor.

Every child's mental maths is at a different stage. Speak with a Bhanzu learning counsellor who can read where your Grade 2 child stands, answer your questions, and help you pick the right program, with zero pressure.

Meet Our Grade 2 Mental Maths Tutors

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 they have to say about teaching mental maths at Bhanzu.

What Parents Say About Us

Frequently Asked Questions

Number bonds to 10 and 20, addition and subtraction within 20 from memory, two-digit addition and subtraction within 100, make-ten and bridging, doubles, place value partitioning, and skip counting in 2s, 5s and 10s.

At the start of Grade 2, no. By the middle of the year it usually signals a number bond gap rather than a speed problem, and the fix is bonds practice, not more sums.

Ask bonds out loud rather than setting sums: "what makes ten with six?" Ten minutes a day where you can hear the method beats forty minutes of silent worksheets.

No. Abacus training teaches a child to visualise beads. Mental maths teaches a child to break numbers apart by their structure. Both build speed; the second one transfers into fractions, word problems and algebra.

Around age 7: equivalent to UK Year 3 and India Class 2.

Book a free class from this page to see where your child's mental maths stands and how Bhanzu builds it.

See Where Your Grade 2 Child's Mental Maths Stands

A free class shows you which Grade 2 skills are solid and which need work, and how Bhanzu builds them, from the why up. The first class is free and no credit card is required.