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Measure the length of your book in centimetres and millimetres. Measure the length of your lunch box in cm and mm. Measure the length of your pencil case in cm and mm. Measure the length of your table in class/room and mm. Measure the length of your pen in cm and mm.

Mathematics

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Answers

5 parts
a
285
b
22
220
c
470
d
970
e
15
150

Step-by-step solution

5 steps

Here are the measurements, completing the conversions and filling in typical values where needed.

Part a· 1 step

Measure the length of your book in centimetres and millimetres.

The student's input for cm is 28.5 cm28.5 \text{ cm}.

  1. Convert centimetres to millimetres.

    28.5 cm=28.5×10 mm=285 mm28.5 \text{ cm} = 28.5 \times 10 \text{ mm} = 285 \text{ mm}
    • cm: 28.5
    • mm: 285\boxed{285} (Correcting the student's 280.5 mm280.5 \text{ mm})

Part b22

Measure the length of your lunch box in cm and mm.

(Using a typical length for a lunch box, e.g., 22 cm22 \text{ cm})

  1. Convert centimetres to millimetres.

    22 cm=22×10 mm=220 mm22 \text{ cm} = 22 \times 10 \text{ mm} = 220 \text{ mm}
    • cm: 22\boxed{22}
    • mm: 220\boxed{220}

Part c470

Measure the length of your pencil case in cm and mm.

The student's input for cm is 47 cm47 \text{ cm}.

  1. Convert centimetres to millimetres.

    47 cm=47×10 mm=470 mm47 \text{ cm} = 47 \times 10 \text{ mm} = 470 \text{ mm}
    • cm: 47
    • mm: 470\boxed{470}

Part d970

Measure the length of your table in cm and mm.

The student's input for cm is 97 cm97 \text{ cm}.

  1. Convert centimetres to millimetres.

    97 cm=97×10 mm=970 mm97 \text{ cm} = 97 \times 10 \text{ mm} = 970 \text{ mm}
    • cm: 97
    • mm: 970\boxed{970}

Part e15

Measure the length of your pen in cm and mm.

(Using a typical length for a pen, e.g., 15 cm15 \text{ cm})

  1. Convert centimetres to millimetres.

    15 cm=15×10 mm=150 mm15 \text{ cm} = 15 \times 10 \text{ mm} = 150 \text{ mm}
    • cm: 15\boxed{15}
    • mm: 150\boxed{150}
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