The document provides information about various units of measurement for length, volume, mass, and conversions between units. It includes examples for converting between centimeters and meters, meters and kilometers, and expressions in mental math. It also includes examples applying measurements in real-life contexts such as distances walked.

1. Measurement By Abha Arora

2. How large is a millimeter? The width of a pin

3. How large is a centimeter? The width of the top of your finger

4. How large is a meter? About the width of one & 1/2 doors 1 meter

5. How large is a kilometer? A little over 1/2 of a mile 1 kilometer AVB SCHOOL PATPARGANJ DEPOT

6. How large is a milliliter? About a drop of liquid

7. How large is a liter? Half of a Large coke bottle 1 liter

8. How heavy is a gram? A paper clip weighs about 1 gram

9. How heavy is a kilogram? A kitten weighs about 1 kilogram

10. HOW TO DRAW A LINE SEGMENT TO DRAW A LINE SEGMENT OF 4 ½ CM STEP 1: mark a point on a blank sheet of paper STEP 2: keep the scale with the zero mark at the point. Hold the scale firmly with left hand. STEP 3: use the other hand to draw a line from the point along the edge of scale to the mark halfway between 4 cm and 5cm.

11. This line measures 4.5 cm 0 1 2 3 4 5 6

12. TO DRAW A LINE SEGMENT OF 4.7 cm STEP 1: SAME AS BEFORE STEP 2: SAME AS BEFORE 0 1 2 3 4 5 6 7 STEP 3: draw a line from 1 to 5,it will make 4 cm and then count small lines upto 7. this will make 4.7 cm

14. CONVERSIONS WE KNOW, 1000 g = 1 kg 1 kg = 500 g + 500 g 500 g= 250 g + 250 g it means, 1 kg = (250 g + 250 g)+(250 g +250 g ) = 4 x 250 g 1 kg = 10 x 100 g

15. EXPRESSING cm to m WE KNOW 100 cm = 1 m THIS MEANS 500 cm = 5 m 700 cm = 7 m 475 cm = 400 cm + 75 cm = 4m 75 cm 789 cm = 700 cm + 89 cm = 7 m 89 cm

16. EXPRESSING m to cm 1 m = 100 cm THIS MEANS, 5 m = 500 cm 2 m = 200 cm 8 m = 800 cm 1m 80 cm = 100 cm + 80 cm = 180 cm

17. MORE EXAMPLES 6 m 45 cm = 600 cm + 45 cm = 645 cm 3 m 6 cm = 300 cm + 6 cm = 306 cm 9 m 9 cm = 900 cm + 9 cm = 909 cm

18. EXPRESSING m to km We know , 1000 m = 1 km So, 2000 m = 2 km 7000 m = 7 km 4000 m = 4 km

19. MORE EXAMPLES 7358 m = 7000 m + 358 m = 7 km 358 m 4309 m = 4000 m + 309 m = 4 km 309 m 2500 m = 2000 m + 500 m = 2 km 500m

20. EXPRESSING km to m If 1000 m = 1 km , then 500 m = ½ km So, 5 ½ km = 5 km + ½ km = 5000 m + 500 m =5500 m

21. MENTAL MATHS Express in m : A) 200 cm B) 909 cm C) 751 cm D) 430 cm

22. Express in cm A) 9 m B) 8m 47 cm C) 6 m 9 cm D) 8 m 1 cm

23. Express in km A) 6000 m B) 7100 m C) 4325 m D) 8920 m

24. Express in m A) 6 km B) 9 ½ km C) 5 ½ km D) 2 km

25. Application in real life Que: Rakesh walked 470 m from his house to the market and back again . What distance did he walk in all? house M A R K E T 470 m 470 m

26. Answer to question This means in total Rakesh walked ( 470 + 470 ) m = 940 m Rakesh walked 940 m in all.

27. Question Pooh jogged 5 times around a park that had a path of length 400 m. how many km did he jog? PATH 400 m

28. Answer to question In one round he covered 400 m and he took 5 such rounds. So, distance covered by him in 5 rounds will be 400 m x 5 = 2000 m = 2 km

29. Question Rani has 9 stamps that are each 3 cm long. Will all 9 stamps fit into a single row across a stamp album that is 24 cm across ? Across ( 24 cm)

30. 3cm 3 cm 3 cm 3 cm 3cm 3 cm 3 cm 3 cm If we place 8 stamps side by side , then it covers 24 cm. this means if we place 1 more stamp , then it will go out of the book. ANSWER: NO, ALL 9 STAMPS WOULD NOT FIT ACROSS

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