π

How rewards work

📒 See my notebook: everything I've played

XP: 0 in all · Level 1

Every right answer gives you XP: 6 on the easiest questions, up to 14 on the hardest, plus 2 more for each answer in a row (up to +10). Lessons you've already mastered give half, so try something new for the most! Every 200 XP, you reach a new level.200 XP to Level 2

Coins: 0

Earn 5 coins for each star in Practice. In Math Race, get 10 for a win or 5 for finishing. In Monster Battle, get 10 for beating the monster or 3 for trying. In Asteroid Blaster, get 10 for finishing a mission or 3 for trying. Every Maze Quest gives 10. Spend them in Digit's House on hats, glasses, mustaches, pets, room decorations, and big room makeovers!

Streak: 0 days

Finish a game on different days in a row to grow your streak. Miss a day and it starts over, unless you have a 🛡️ streak shield from Digit's House: it saves your streak for one missed day (you can keep 2).

Badges

Earn badges for big moments: your first 3-star round, beating every monster, a 7-day streak, finding treasures, and more. See them all, and how close you are, on the badge wall in Digit's House.

Difficulty

Get 3 right in a row and questions get trickier. Miss 2 in a row and they get easier. Each skill remembers where you are.

The games

Practice

10 questions. Get most of them right for up to 3 stars. Use a hint if you're stuck.

Math Race

Get 10 right to reach the finish before Digit. A wrong answer doesn't move you back, but the clock keeps ticking. Win and Digit gets faster next time.

Monster Battle

The monster has 8 HP and you have 3 hearts. Each right answer throws something silly at it. Get 2 in a row to switch on ⚡ super power: then every hit does double damage until you miss. A wrong answer lets the monster take a heart. No clock, so take your time.

Asteroid Blaster

10 waves of falling asteroids, each with an answer. Tap the right one to blast it. Faster shots and streaks score more points. You have 3 shields: a wrong tap or a missed asteroid uses one.

Maze Quest

Help Digit through a maze with 8 locked doors. Answer to open each door; open it on the first try for a 💎. No clock and no lives: a wrong answer just means a new question. A treasure waits at the end. Can you find all 12?

Daily Challenge

One puzzle a day, the same for everyone in your grade. Your first try counts and earns 15 coins. Do one every day to grow your Daily streak, and share your result card with family!

Brain Break

A break from math: two fun questions about animals, space, our world, and more, every day. Each right answer earns 5 coins, and you'll learn a cool fact either way.

Challenge a friend

After a game, send a link. Your friend gets the exact same questions and tries to beat your score.

Settings

Read questions out loud
🔊 Read questions out loud by itself

The 🔊 button is on every question in every grade, so anyone can tap it to hear one. This setting only decides when questions are read without tapping.

Voices come from this device and browser. Ones marked “Natural”, “Neural”, or “Google” sound most like a real person. Microsoft Edge has extra natural voices built in. Pets, monsters, and Nibbles each get their own pitch and speed.

📲 Install the appOpen agarwalmath from the home screen, full screen, like an app. Free, no app store.How to install
← Add & subtract stories
🔀 Make a different worksheet

12 questions and an answer key (on the last page). Free to print and share with your class or family.

πagarwalmath · 2nd grade · Common Core 2.OA.A.1

📖 Add & subtract stories

One- and two-step story problems within 100

Name: ______________________Date: ____________

  1. 1Captain Nova has 454 star crystals on the space station. Captain Nova gives 424 to Comet Kim. How many star crystals does Captain Nova have left?

    Answer: ______________ star crystals

  2. 2Comet Kim has 852 star crystals on the space station. Comet Kim gives 695 to Rocket Raj. How many star crystals does Comet Kim have left?

    Answer: ______________ star crystals

  3. 3Fifi the Fox has 544 fish. Benny the Bear has 142 fish. How many more fish does Fifi the Fox have than Benny the Bear?

    Answer: ______________ fish

  4. 4Omar has 320 books at the beach. Priya gives Omar 267 more. How many books does Omar have now?

    Answer: ______________ books

  5. 5Fifi the Fox has 145 acorns. Ollie the Owl has 37 acorns. How many more acorns does Fifi the Fox have than Ollie the Owl?

    Answer: ______________ acorns

  6. 6Benny the Bear has 20 berries by the river. Benny the Bear gives 8 to Penny the Panda. How many berries does Benny the Bear have left?

    Answer: ______________ berries

  7. 7Comet Kim has 727 space snacks on the Moon. Comet Kim gives 499 to Astro Ana. How many space snacks does Comet Kim have left?

    Answer: ______________ space snacks

  8. 8Rocket Raj has 319 star crystals on the space station. Rocket Raj gives 160 to Astro Ana. How many star crystals does Rocket Raj have left?

    Answer: ______________ star crystals

  9. 9Astro Ana has 16 space snacks on the space station. Astro Ana gives 14 to Comet Kim. How many space snacks does Astro Ana have left?

    Answer: ______________ space snacks

  10. 10Astro Ana has 203 space snacks on the space station. Comet Kim gives Astro Ana 64 more. How many space snacks does Astro Ana have now?

    Answer: ______________ space snacks

  11. 11Comet Kim has 102 space snacks on the Moon. Rocket Raj gives Comet Kim 429 more. How many space snacks does Comet Kim have now?

    Answer: ______________ space snacks

  12. 12Sam has 352 books. Priya has 141 books. How many more books does Sam have than Priya?

    Answer: ______________ books

Answer key: Add & subtract stories

  1. 1. 30 star crystals
  2. 2. 157 star crystals
  3. 3. 402 fish
  4. 4. 587 books
  5. 5. 108 acorns
  6. 6. 12 berries
  7. 7. 228 space snacks
  8. 8. 159 star crystals
  9. 9. 2 space snacks
  10. 10. 267 space snacks
  11. 11. 531 space snacks
  12. 12. 211 books

Practice this lesson online with games that adjust to your child: agarwalmath.com/math/2nd-grade/word-add-sub

agarwalmath.com · free K–5 math games, no adsClass code: ____________

All 2nd grade lessons and worksheets