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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
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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.

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← Estimate lengths
Level:EasierLevel 2Level 3Level 4Harder
🔀 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.MD.A.3

🤔 Estimate lengths

Estimate lengths

Name: ______________________Date: ____________

  1. 1About how long is a crayon?

    • AAbout 90 centimeters
    • BAbout 9 meters
    • CAbout 1 centimeter
    • DAbout 9 centimeters

  2. 2About how long is a pencil?

    • AAbout 1 inche
    • BAbout 7 feet
    • CAbout 7 inches
    • DAbout 70 inches

  3. 3About how long is a new crayon box?

    • AAbout 10 centimeters
    • BAbout 1 centimeter
    • CAbout 10 meters
    • DAbout 100 centimeters

  4. 4About how long is a school bus?

    • AAbout 1 meter
    • BAbout 12 meters
    • CAbout 120 meters
    • DAbout 12 kilometers

  5. 5About how tall is a door?

    • AAbout 2 kilometers
    • BAbout 1 meter
    • CAbout 2 meters
    • DAbout 20 meters

  6. 6About how wide is a door?

    • AAbout 3 feet
    • BAbout 1 feet
    • CAbout 3 yards
    • DAbout 30 feet

  7. 7About how long is a soccer field?

    • AAbout 100 kilometers
    • BAbout 1000 meters
    • CAbout 100 meters
    • DAbout 10 meters

  8. 8About how long is a spoon?

    • AAbout 150 centimeters
    • BAbout 15 centimeters
    • CAbout 15 meters
    • DAbout 2 centimeters

  9. 9About how tall is a classroom?

    • AAbout 1 feet
    • BAbout 10 feet
    • CAbout 10 yards
    • DAbout 100 feet

  10. 10About how long is a paper clip?

    • AAbout 30 centimeters
    • BAbout 3 meters
    • CAbout 1 centimeter
    • DAbout 3 centimeters

  11. 11About how tall is a kitchen counter?

    • AAbout 1 feet
    • BAbout 3 feet
    • CAbout 3 yards
    • DAbout 30 feet

  12. 12About how wide is a postage stamp?

    • AAbout 1 centimeter
    • BAbout 2 meters
    • CAbout 2 centimeters
    • DAbout 20 centimeters

Answer key: Estimate lengths

  1. 1. D (About 9 centimeters)
  2. 2. C (About 7 inches)
  3. 3. A (About 10 centimeters)
  4. 4. B (About 12 meters)
  5. 5. C (About 2 meters)
  6. 6. A (About 3 feet)
  7. 7. C (About 100 meters)
  8. 8. B (About 15 centimeters)
  9. 9. B (About 10 feet)
  10. 10. D (About 3 centimeters)
  11. 11. B (About 3 feet)
  12. 12. C (About 2 centimeters)

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

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

All 2nd grade lessons and worksheets