Tile Trickery Town: Squares and square roots comic

LearnFun Comics#19
The Sum Goblin

Tile Trickery Town

Square tiles and silly lies. Who can trust the Goblin?

Starring Momo
Squares and square roots ยท Class 8

Squareville

Momo: Square tiles for a new playground! Momo counted, just to be sure.

The Sum Goblin

The Sum Goblin: Take my tiles, Momo. Lie about side length.

Momo: Side length? Whatโ€™s that? Maybe I should measure... or ask?

Squares and square roots

Squares numbers times themselves

Square roots undo squaring

Four's square root is two

Momo: I see, so 2 times 2 is 4. And 4 is the square of 2!

The Sum Goblin

The Sum Goblin: Say tile 4 is 2 squared. Momo says 3, buys more!

Momo: If a tile is 9, whatโ€™s its square root? 3 times 3 is 9!

3 squared = 9

Square root of 9 = 3

Momo's tip

Square root of 16 is 4

4 squared = 16

Square root of 16 = 4

Momo: Always check by squaring. If youโ€™re right, you get the tile!

Your turn, hero!

The Sum Goblin
The Sum Goblinโ™ฅโ™ฅโ™ฅ

A square tile covers 81 small squares. What is the square root of 81?

9. 9 ร— 9 = 81.

The Sum Goblin

The Sum Goblin: Oh, and Momo, if 9 tiles are 3 squared, why not 10? Haha, another tile for free!

What is the square root of 49?

7. 7 ร— 7 = 49.

The final battle

The Sum Goblin
The Sum Goblinโ™ฅโ™ฅโ™ฅ

Momo finds 225. Square root, then square. What number?

225. 15 ร— 15 = 225.

The Sum Goblin

The Sum Goblin: Square roots? Boring. Momo will fall.

Momo: No, no! I measured and counted. Squares never lie!

Squareville playground is safe. The goblinโ€™s tricks are up!

The End?

Remember

  • Squares are numbers times themselves
  • Square roots undo squaring
  • Always check by squaring

But why does Momo feel like sheโ€™s missing something? A note from the goblin falls to the ground...

A comic book about Squares and square roots. Follow Momo, learn the idea, and answer three questions to beat The Sum Goblin.

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