Showing posts with label Centimeter. Show all posts
Showing posts with label Centimeter. Show all posts

Understanding Centimeters and Meters | 3rd Maths Term 1 Chapter 4 Measurements

3rd Maths: Term 1 Unit 4: Measurements

Centimeter and meter
Let us know
100 centimeters (cm) = 1 meter (m)
Try this

a. Fill in the blank with appropriate units (meter/centimeter) to measure the following.

  • 1. My pencil is 6 cm long.
  • 2. This tree is 3 m high.
  • 3. My height is 80 cm
  • 4. My hairpin is mm long.
  • 5. Height of coconut tree is 15 m.

  • b. Meena has a ribbon of 50 centimeter and Reena has a ribbon of 110 centimeter. Whose ribbon is the longer?

    Answer :

    Length of Meena’s ribbon = 50 cm

    Length of Reena ribbon = 110 centimeter.

    Reena’s ribbon is longer than Meena’s ribbon.

    Activity 6

    Measure the length of following things in your class room using a measuring tape and fill in the given boxes.

    Activity: Measure classroom objects
    Understanding Units

    Understand the order of magnitude between centimeter, meter and kilometer as units.

    Try This

    Put '<' and '>' in the boxes providing.

  • a. Centimeter < Meter
  • b. Meter < Kilometer
  • c. Kilometer > Centimeter
  • Practice

    Match the objects with the appropriate units of measuring their length.

    Match objects with their measurement units

    Answer Key

    (i) Length of a pen is measured in centimeters (cm).

    (ii) Length of a saree is measured in meters (m).

    (iii) Distance between two cities is measured in kilometers (km).

    Understanding Millimeter and Centimeter | 3rd Grade Maths Measurements

    Measurements: Millimeter and Centimeter

    Chapter: 3rd Maths : Term 1 Unit 4 : Measurements

    Millimeter and Centimeter

    Introduction

    This is a centimeter scale/ruler. 1 denotes 1 centimeter, 2 denotes 2 centimeter and so on. The length between 0 and 1 has 10 parts denoted by small lines. Measurement of each part is millimeter.

    Can you tell me how many millimeters are there between 0 and 1 ?

    Now, can you tell me how many millimeters are there between 1 and 2 ? 1 and 3 ?

    Now, can you tell me how many millimeters are there in 1 centimeter ?

    A ruler showing centimeters and millimeters

    From the picture,

    1 centimeter equal to 10 parts.

    So 10 millimeter = 1 centimeter.

    HOW TO WRITE

    Millimete − mm

    Centimeter − cm

    Meter – m

    Kilometer – km

    Millimeter is the smaller unit of length.

    Kilometer is the bigger unit of length.

    Let us know

    100 centimeter = 1 meter

    1000 meter = 1 Kilometer

    Example
    Example of measuring objects

    millimeter (mm), centimeter (cm), meter (m)

    Activity 4

    Measure the length of ribbon by tape roll.

    Activity measuring ribbons

    Raj ___ centimeter

    Anu ___ centimeter

    Ram ___ centimeter

    Kavi ___ centimeter

    The length of the ribbons same when we measure with standard tool using standard unit of measurement.

    Practice

    Measure the length of following things by centimeter scale and Fill in the given boxes with the measurements.

    Practice exercise: measure the objects shown

    3rd Maths: Term 1 Unit 4 - Measurements (Millimeter and Centimeter)

    роЕро│ро╡ீроЯுроХро│்: рооிро▓்ро▓ி рооீроЯ்роЯро░் рооро▒்ро▒ுроо் роЪெрой்роЯிрооீроЯ்роЯро░்

    3 роЖроо் ро╡роХுрок்рокு роХрогроХ்роХு : рооுродро▓் рокро░ுро╡роо் роЕро▓роХு 4

    рооிро▓்ро▓ி рооீроЯ்роЯро░் рооро▒்ро▒ுроо் роЪெрой்роЯிрооீроЯ்роЯро░்

    роЕро▒ிрооுроХроо்

    роЗродு роТро░ு роЪெрой்роЯிрооீроЯ்роЯро░் роЕро│ро╡ுроХோро▓். роТро░ு роЪெрой்роЯிрооீроЯ்роЯро░ை роХுро▒ிрок்рокродு ‘1’. роЗро░рог்роЯு роЪெрой்роЯிрооீроЯ்роЯро░ை роХுро▒ிрок்рокродு '2': '0' рооро▒்ро▒ுроо் '1' роХ்роХுроо் роЗроЯைропே роЙро│்ро│ роиீро│роо், 10 рокроХுродிроХро│ாроХ роЪிро▒ு роЪிро▒ு роХோроЯுроХро│் рооூро▓роо் роХுро▒ிроХ்роХрок்рокроЯ்роЯுро│்ро│родு. роТро╡்ро╡ொро░ு рокроХுродிропிрой் роЕро│ро╡ீроЯுроо் 'рооிро▓்ро▓ிрооீроЯ்роЯро░்" роОройрок்рокроЯுроо்.

    '0’ рооро▒்ро▒ுроо் ‘1’ роХ்роХுроо் роЗроЯைропே роОрод்родройை рооிро▓்ро▓ிрооீроЯ்роЯро░்роХро│் роЙро│்ро│рой роОрой்рокродை роиீроЩ்роХро│் роОрой்ройிроЯроо் роЪொро▓்ро▓ рооுроЯிропுрооா?

    роЗрок்рокோродு 1 рооро▒்ро▒ுроо் 2- роХ்роХுроо் роЗроЯைропே роОрод்родройை рооிро▓்ро▓ிрооீроЯ்роЯро░்роХро│் роЙро│்ро│рой роОрой்рокродை роОрой்ройிроЯроо் роЪொро▓்ро▓ рооுроЯிропுрооா? 1 рооро▒்ро▒ுроо் 3?

    роЗрок்рокோродு 1 роЪெрой்роЯிрооீроЯ்роЯро░ிро▓் роОрод்родройை рооிро▓்ро▓ிрооீроЯ்роЯро░்роХро│் роЙро│்ро│рой роОрой்рокродை роОрой்ройிроЯроо் роЪொро▓்ро▓ро╡ுроо்.

    A segment of a centimeter ruler showing millimeters.

    рокроЯрод்родிро▓ிро░ுрои்родு,

    1 роЪெрой்роЯிрооீроЯ்роЯро░் = 10 рокாроХроЩ்роХро│்

    роЕродройாро▓்

    10 рооிро▓்ро▓ிрооீроЯ்роЯро░் = 1 роЪெрой்роЯிрооீроЯ்роЯро░்

    роОро┤ுродுро╡родு роОрок்рокроЯி?

    рооிро▓்ро▓ிрооீроЯ்роЯро░் - рооி.рооீ.

    роЪெрой்роЯிрооீроЯ்роЯро░் - роЪெ.рооீ.

    рооீроЯ்роЯро░் - рооீ

    роХிро▓ோрооிроЯ்роЯро░் - роХி.рооீ

    роиீро│род்родிрой் рооிроХроЪ்роЪிро▒ிроп роЕро▓роХு рооிро▓்ро▓ிрооீроЯ்роЯро░் роОрой்ро▒ு роЕро┤ைроХ்роХрок்рокроЯுроХிро▒родு.

    роиீро│род்родிрой் рооிроХрок்рокெро░ிроп роЕро▓роХு роХிро▓ோрооீроЯ்роЯро░் роОрой்ро▒ு роЕро┤ைроХ்роХрок்рокроЯுроХிро▒родு.

    родெро░ிрои்родு роХொро│்ро╡ோроо்

    100 роЪெрой்роЯிрооீроЯ்роЯро░் = 1 рооீроЯ்роЯро░்

    1000 рооீроЯ்роЯро░் = 1 роХிро▓ோ рооீроЯ்роЯро░்

    роОроЯுрод்родுроХ்роХாроЯ்роЯு:

    Example showing objects measured in millimeters (pin), centimeters (pencil), and meters (book).

    рооிро▓்ро▓ிрооீроЯ்роЯро░் (рооி.рооீ.) роЪெрой்роЯிрооீроЯ்роЯро░் (роЪெ. рооீ.) рооீроЯ்роЯро░் (рооீ.)

    роЪெропро▓்рокாроЯு 4

    роЕро│ро╡ு роиாроЯா рооூро▓роо் ро░ிрок்рокройிрой் роиீро│род்родை роЕро│роХ்роХро╡ுроо்...

    A ribbon being measured.

    ро░ாроЬ் ________ роЪெрой்роЯிрооீроЯ்роЯро░்

    роЕройு ________ роЪெрой்роЯிрооீроЯ்роЯро░்

    ро░ாроо் ________ роЪெрой்роЯிрооீроЯ்роЯро░்

    роХро╡ி ________ роЪெрой்роЯிрооீроЯ்роЯро░்

    родிроЯ்роЯ роЕро│ро╡ைроХро│் роХொрог்роЯு родிроЯ்роЯ роЕро▓роХுроХро│ாро▓் роЕро│роХ்роХுроо்рокோродு ро░ிрок்рокрой்роХро│ிрой் роиீро│роо் рооро▒ுрокроЯுро╡родிро▓்ро▓ை.

    рокропிро▒்роЪி роЪெроп்

    роЪெрой்роЯிрооீроЯ்роЯро░் роЕро│ро╡ுроХோро▓் рооூро▓роо், рокிрой்ро╡ро░ுроо் рокொро░ுро│்роХро│ிрой் роиீро│роЩ்роХро│ை роЕро│ро╡ிроЯ்роЯு, роХீро┤ே роЙро│்ро│ роХோроЯிроЯ்роЯ роЗроЯроЩ்роХро│ிро▓் роиிро░рок்рокுроХ.

    Practice exercise to measure the length of a pencil, eraser, sharpener, and chalk.