MEMISM

Make-Your-Brain-Grow

Idle

Arithmetic

A pure speed drill: solve as many as you can before the timer ends. You can mix operations, add squares / roots, and drop in 1-step algebra.

How it works

Type the answer and hit Enter (or auto-submit if exact match).
Fast input: no animations on the answer field.
Stats: lifetime per-problem averages + test history.

What it trains

Quanitative reasoning: spot relationships, estimate, and choose efficient strategies
Working memory: update and hold information under load.
Processing speed

Space start • R reset • M menu • Enter submit

Training

Read the overview, then begin.

Time —

Solved —

Mode —

Session 00:00

press start

—

Press Start. Enter submits.

Options & Results

Configure ops + ranges. Export/import history JSON.

Duration 120s

Auto-accept exact match ON

Stats sort SEEN

Panel STATS

Operations toggle

Addition

A+B

Add min/max 2–100

Subtraction 2–100

avoid negatives

Multiplication 2–12 × 2–100

random order

Division 2–12 ÷ → 2–100

Division

Exact only

Squares OFF

Enable

n²

Answer is n².

Square roots OFF

Enable

√(k)

Generates perfect squares only.

Algebra OFF

Enable

solve x

x range 2–50

Coefficient max 12

Types include: x + a = b, x − a = b, ax = b, x/a = b.

Lifetime Stats

#	Problem	Seen	Avg ms

Test History