Early access · free while we test

CBSE practice that never repeats

Fresh maths, science, English and Hindi worksheets for Class 1 to 12, matched to the chapter your child is doing this week. Every sheet is new, every sheet has an answer key with the working, and on the phone every answer is checked for you.

  • Answer key on every sheet
  • NCERT chapters
  • Answers worked out by code
  • Free cheat sheets

Coming soon for Android and iPhone.

Ambiful Worksheets · CBSE · Class 7
Operations with Integers
1. The value of (−7) × (−5) is: (a) −12 (b) −35 (c) 12 (d) 35
9. Simplify: (−11) + (−28) − (−28)
17. At 6 pm the temperature in Leh was 5°C. It fell by 4°C every hour. What was the temperature 8 hours later?
Answer key on the last page, with the working.
New sheet every time Checked answers
503chapters
1–12classes
8subjects
10–20questions a sheet
How it works

Three taps to a fresh sheet

  1. Add your child

    Just a first name and their class. Nothing else about them.

  2. Pick the chapter

    The one they are doing at school this week. The app remembers the last one.

  3. Print or share

    A printable PDF in seconds, or notebook mode for homes without a printer.

Practice mode

Practice that feels like a game

Children can also work through any sheet on the phone, one question at a time, and see straight away how they did: Easy, the full sheet, or a Challenge. Their chapters make a practice path, with up to three stars to win on each.

Every answer checked

Children type their answers, from numbers to whole sentences, and see at once if they are right. Explanations get a kind tip on what is missing.

Daily streaks

A flame for every day in a row. A gentle reminder helps keep the streak going.

XP, badges and leagues

Every right answer earns XP and 14 badges wait to be collected. Each week children climb a league from Bronze to Diamond, under a fun nickname, never their real name.

Cheers and confetti

Happy sounds, a spoken "Bravo!" for a run of right answers, and confetti at the end. Sounds and voice can be turned off.

The app

Made for a busy evening

Every child, one tap away

Add each child once, with just a first name and class. Their next worksheet is a single tap from the home screen.

  • Brothers and sisters in different classes, side by side
  • Recent worksheets right below, to open again
  • No photos, no school name, no date of birth
The home screen: two children, Aarav in Class 10 and Diya in Class 7, each with a New worksheet button, and the recent worksheets below.

This week’s chapter, first

Pick the chapter your child is doing at school. The ones you used last are at the top, so the next sheet is quick.

  • Chapters follow the NCERT book
  • Maths, Science, Social Science (Classes 6 to 10, more coming), English and Hindi (grammar, reading and writing), and from Class 11 Physics, Chemistry and Biology
  • A short line under each chapter says what it covers
Choose a topic for Aarav, Class 10: Mathematics and Science chips, last time Quadratic Equations and Introduction to Trigonometry, then more topics.

A real CBSE sheet in seconds

Twenty questions in three sections, set the way school papers are, with fresh numbers every time (ten picture questions for Class 1 and 2).

  • Section A multiple choice, Section B short answers, Section C long answers
  • Each sheet has its own ID, so you can find it again
  • Notebook mode for homes without a printer
A Real Numbers worksheet for Class 10 with Print and Share PDF buttons, notebook mode, and the first multiple-choice questions.

Picture sheets for Class 1 and 2

Little ones get ten big questions with pictures to count, made to be read aloud. In the app, a Read aloud button reads each question to your child.

  • Every chapter of the new NCERT Class 1 and 2 books
  • Count, compare, add and take away with pictures
  • Big type on paper and on the phone
A Class 1 Mango Treat sheet: rows of ants, birds and balloons to compare, with a Read aloud button under each question.

Type the answer, checked at once

In practice on the phone your child types every answer: a number, a fraction, a word, a list or a whole sentence, and sees straight away whether it is right.

  • The app’s own number pad, with fractions and powers of ten
  • Right items in the wrong order are asked again, not marked wrong
  • Every mistake is saved for a quick review
A Class 7 practice question, Solve 9x − 11 = 61, with x = 8 typed and a green Correct! panel.

Explanations marked, with a tip

Answers that need a sentence or a reason are marked against the sheet’s own model answer, with one kind line on what is right and what is missing.

  • Right, nearly there, or not yet
  • The model answer and working shown underneath
  • Only drawing questions stay on paper
A trigonometry practice question with the typed answer cos A = 35/37 and tan A = 12/37, marked Nearly there!, with the tip: You found cos A correctly, but tan A is not right.

Free one-page cheat sheets

Revise a chapter on one page: the key ideas, formulas, common mistakes and a worked example. Print it, or read it on the phone.

  • Every Class 6 to 10 maths chapter
  • Every Class 9 and 10 science chapter
  • Also free on this website
The Finding the Unknown cheat sheet for Class 7: Print and Share PDF buttons, the key ideas and a worked example.

Check the work in a minute

Show the answer key on the phone while your child works, or keep it hidden until they finish. Answers come with the working.

  • Every answer worked out by code and checked by tests
  • The working shows how to get there
  • The printed PDF puts the key on the last page
The answer key shown under each question: the HCF and LCM questions with their answers and one line of working each.

Print on A4, or share the PDF

Send the sheet to any printer, or share the PDF on WhatsApp to print at a shop or open on another device.

  • Laid out for A4 paper
  • Answer lines sized for the question
  • Share to WhatsApp, email or Files
The print options for the worksheet: A4 paper, four pages, with a preview of the first two pages.

Every sheet kept

Every worksheet you make is saved, for each child, so you can print a sheet again or look back at what they practised.

  • Each with the child’s name, the date and the sheet ID
  • Open any sheet to print it again, with its answer key
  • Questions already given are never repeated
The worksheets list: Real Numbers, Quadratic Equations, Introduction to Trigonometry and Chemical Reactions for Aarav, and Simple Equations for Diya.
On every sheet

Set the way CBSE papers are set

A

8 multiple-choice

Including a concept question and an assertion–reason question.

B

8 short answers

The chapter's main skills, one at a time.

C

4 long answers

Word problems and explain-why questions.

Answer key

Every answer with the working, and a sheet ID so you can find it again.

Class 1 and 2 sheets are shorter: ten big picture questions to read aloud, with the answer key on the last page.

Why parents trust it

Practice you can check in a minute

Never the same question twice

The app remembers what your child has had and never serves a question again.

Answers you can rely on

Every question and every answer is worked out by code and checked, not written by AI.

Made for India

CBSE chapters, rupees and Indian names in the questions, and the app in English or Hindi.

For schools

Bring your whole class

A teacher shares one code. Parents enter it in the app, the class gets its own weekly league under nicknames, and the teacher sees who practised and which chapters are hard. No student logins.

See how it works for schools

Worksheets

Pick a class

Try one now: Class 7 Operations with Integers, with sample questions and a printable sheet.

FAQ

Questions parents ask

Which board and classes does it cover?

CBSE, Classes 1–12, following the NCERT chapters. Maths for Classes 1 to 12 (short picture sheets to read aloud for Classes 1 and 2, Maths Mela for Classes 3 to 5), Science for Class 5 (EVS), Classes 6 to 8 (Curiosity) and Classes 9 and 10, Physics, Chemistry and Biology from Class 11 as they are added, and English vocabulary, grammar (tenses, agreement, articles, voice, reported speech), reading comprehension and writing for Classes 6 to 12, Social Science for Classes 6 to 10 (every chapter of Exploring Society: India and Beyond for Classes 6 to 8 and of Understanding Society: India and Beyond for Class 9, and every chapter of the four Class 10 books: India and the Contemporary World II, Contemporary India II, Democratic Politics II and Understanding Economic Development; more classes coming), and Hindi for Classes 6 to 10, with the questions in Hindi: grammar (पर्यायवाची-विलोम, लिंग-वचन, संज्ञा, काल, मुहावरे, उपसर्ग-प्रत्यय and more), unseen passages (अपठित गद्यांश) and writing (सूचना, संदेश, पत्र, अनुच्छेद, ईमेल, विज्ञापन) with model answers.

Will my child get the same questions again?

No. The app remembers every question your child has been given and leaves it out of the next sheet, so each sheet is fresh practice.

Who writes the questions? Is it AI?

Each topic is a set of question templates written to the NCERT chapter. The numbers change every time, and every answer is worked out by code and checked by automated tests. No question or answer is written by AI. AI is used for one thing only: in practice on the phone, it marks the explanations your child types, against the sheet’s own model answer.

Is there an answer key?

Yes. Every sheet ends with an answer key, and most answers show the working, so you can check your child’s work without solving it yourself.

We do not have a printer. Can we still use it?

Yes. Notebook mode leaves out the writing lines, so your child reads the sheet on the phone and writes the answers in a notebook.

Can my child practise on the phone instead of printing?

Yes. Practice mode goes through the sheet one question at a time, and your child types every answer in the app. Numbers, fractions, words, lists and sentences are checked straight away; explanations (“give a reason”, “explain why”) are marked against the sheet’s model answer, with one kind tip on what is missing. Only drawing questions stay on paper. Questions they get wrong are saved for a quick mistake review later. Streaks, XP, levels, badges and a practice path with stars for every chapter make it something they want to come back to.

What are the cheat sheets?

A free one-page revision sheet for a chapter: the key ideas, formulas, common mistakes and a worked example. There is one for every Class 6 to 10 maths chapter and every Class 9 and 10 science chapter, in the app and on this website, ready to print.

Does it work for Class 1 and 2?

Yes. Class 1 and 2 get short picture sheets: ten big questions with pictures to count, made to be read aloud. In the app, a Read aloud button reads each question to your child.

Who does my child compete with in the weekly league?

Up to 20 other children who practised that week, ranked by the XP they earn. Everyone appears under a made-up nickname like Speedy Fox 62, so no one sees a real name, class or photo. The top 3 move up a league each Monday. You can switch leagues off in the app under Account.

Can my child’s school use it?

Yes. A teacher creates a class and shares a code; you enter it on your child’s profile and your child joins the class league, while the teacher sees how the class is practising. See the page for schools.

What does it cost?

It is free while we are in early access. If that changes, the app will tell you before anything is charged.

What do you store about my child?

Only a first name and a class. No photos, no school name, no date of birth. You can delete your account and everything in it from the app at any time.

Fresh practice for this week's chapter

Pick the chapter and give your child a sheet they have never seen.

Coming soon for Android and iPhone.