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ESTIMATION

ESTIMATION. Estimation means an approximate calculation. Without actual measurement , we estimate Lily’s height to be 120 cm. …we estimate the board’s length to be 2 wah . …we estimate the toy gun’s length to be 10 cm. …we estimate the box’ height to be 20 cm . Guess.

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ESTIMATION

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  1. ESTIMATION Estimation means an approximate calculation.

  2. Without actual measurement , we estimate Lily’s height to be 120 cm. …we estimate the board’s length to be 2 wah.

  3. …we estimate the toy gun’s length to be 10 cm. …we estimate the box’ height to be 20 cm.

  4. Guess Baby Yan- yan’s height: 68 cm b. 58 cm

  5. Guess The praying mantis’ length: 32mm b. 35mm

  6. Guess Teacher Toto’s height: 164 cm b. 250cm

  7. Estimate The elephant’s height: 2 wah b. 1 wah

  8. Bleeeeeee!!!!! You’re wrong

  9. Hurray!!!!! You’re right!

  10. Exercises

  11. 1. Circle the appropriate eye-estimation.

  12. 2. Estimate the length or height of the objects below. Indicate the errors.

  13. 3. Estimate the perimeter of the given shapes in centimeter. Then, measure using the ruler. Indicate the error. 5cm 2 cm 3 cm 3 cm 3 cm 5cm Perimeter= 13 cm Perimeter= 13 cm

  14. Exercise 4: Solving Word Problems on Length There are 4 poles located in equal distance from each other. If the distance between the first pole and the last pole is 9 km, what is the distance between the poles in meters. w w w w ? _ m ? _ m ? _ m 9 km

  15. Exercise 4: Solving Word Problems on Length b. The length of a harvest field is 60 wah. Find the length of one and a half of it in meters. Figure B Figure A 60 wah ? m

  16. Exercise 4: Solving Word Problems on Length A cable wire with the length of 4 km is cut into 6 equal pieces. What is the length of each piece in meters. 4 km ? m ? m ? m ? m ? m ? m

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