Decimal Dilemma: Decimals comic

Decimal Dilemma

Move the point, and double the cost! Can Momo save the day?

Starring Momo
Decimals · Class 5

Market Square, City of Numbers

Momo: Look at those price tags, all wrong!

Professor Puzzle: I swapped every label! Now you’ll pay more!

Momo: How can I fix this without anyone noticing?

Decimal Dots

Dots show tenths count

25 tenths in 2.50 here

250 tenths in 25.00

Momo: When the dot moves, the price gets bigger or smaller! It’s like adding or taking away tenths of the price.

Professor Puzzle: ₹2.50 looks like ₹25.00 now! Oops, 20 times too much!

Momo: 2.50 has 5 tenths. 25.00 has 25 tenths! That’s 10 times more!

2.50 = 2 and 5 tenths

25 = 25 tenths

25.00 = 250 tenths of 1

Decimal Tips

Move dot left to divide by 10

Move dot right to multiply by 10

Keep same number, move dot.

Momo: To divide by 10, move dot left. Multiply by 10, move dot right!

Your turn, hero!

Professor Puzzle♥♥♥

Momo has ₹10. She buys a lolly for ₹2.50. How much does she have left?

7.50. 10.00 - 2.50 = 7.50.

Professor Puzzle: Momo won’t know what hit her! 25% off for everyone!

If 1 tenths is 0.1, then 5 tenths is?

0.5. 5 × 0.1 = 0.5.

The final battle

Professor Puzzle♥♥♥

Momo finds a note with 25 tenths. How much is that in rupees?

2.5. 25 × 0.1 = 2.5.

Professor Puzzle: Poor Momo! She can’t figure it out!

Momo: I’ll add them back! One by one.

All prices back to normal! The town is saved!

The End?

Remember

But who taught Professor Puzzle his tricks? A small note flutters away...

A comic book about Decimals. Follow Momo, learn the idea, and answer three questions to beat Professor Puzzle.