Decimal Dilemma: Decimals comic video

0:00 LearnFun Comics. Decimal Dilemma. Move the point, and double the cost! Can Momo save the day?

0:07 Market Square, City of Numbers

0:09 Look at those price tags, all wrong!

0:12 I swapped every label! Now you’ll pay more!

0:15 How can I fix this without anyone noticing?

0:18 Decimal Dots

0:20 Dots show tenths count. 25 tenths in 2.50 here. 250 tenths in 25.00

0:29 When the dot moves, the price gets bigger or smaller! It’s like adding or taking away tenths of the price.

0:35 ₹2.50 looks like ₹25.00 now! Oops, 20 times too much!

0:43 2.50 has 5 tenths. 25.00 has 25 tenths! That’s 10 times more!

0:50 2.50 = 2 and 5 tenths. 25 = 25 tenths. 25.00 = 250 tenths of 1

1:01 Decimal Tips

1:03 Move dot left to divide by 10. Move dot right to multiply by 10. Keep same number, move dot.

1:10 To divide by 10, move dot left. Multiply by 10, move dot right!

1:15 Your turn, hero! Momo has ₹10. She buys a lolly for ₹2.50. How much does she have left? A: 7.00. B: 7.50. C: 2.50. D: 12.50

1:35 The answer is 7.50. 10.00 - 2.50 = 7.50.

1:43 Momo won’t know what hit her! 25% off for everyone!

1:47 If 1 tenths is 0.1, then 5 tenths is? A: 1.5. B: 5.0. C: 0.15. D: 0.5

2:02 The answer is 0.5. 5 × 0.1 = 0.5.

2:08 The final battle Momo finds a note with 25 tenths. How much is that in rupees? A: 25.0. B: 2500. C: 2.5. D: 250

2:25 The answer is 2.5. 25 × 0.1 = 2.5.

2:31 Poor Momo! She can’t figure it out!

2:34 I’ll add them back! One by one.

2:37 All prices back to normal! The town is saved!

2:40 Remember. Dot shows tenths Move left divide by 10 Move right multiply by 10

2:46 But who taught Professor Puzzle his tricks? A small note flutters away...

2:51 Read this comic and answer the questions yourself, at learn fun dot in.