Measure the pen and the flash drive in centimetres and millimetres. a) Pen = cm + mm b) Flash drive = cm + mm

Here are the measurements from the image:

Activity 1: Measuring With a Ruler

1. Measure the pen and the flash drive in centimetres and millimetres.

• Pen:
  • In centimetres: $10.2 \text{ cm}$
  • In millimetres: $102 \text{ mm}$
• Flash drive:
  • In centimetres: $4.0 \text{ cm}$
  • In millimetres: $40 \text{ mm}$

2. Measure the pen and the flash drive in millimetres only.

• a) Pen = $\boxed{102 \text{ mm}}$
• b) Flash drive = $\boxed{40 \text{ mm}}$

3. Measure the pen and the flash drive in centimetres only.

• a) Pen = $\boxed{10.2 \text{ cm}}$
• b) Flash drive = $\boxed{4.0 \text{ cm}}$

4. Look at the measurement on each of the rulers below.

• a) Pen = $\boxed{10.2 \text{ cm}}$ (This question seems to be a repeat of 3a, but referring to the pen in the main image, not the rulers A-E. Assuming it refers to the pen in the main image.)
• b) Flash drive = $\boxed{4.0 \text{ cm}}$ (This question seems to be a repeat of 3b, but referring to the flash drive in the main image.)

5. Express these measurements in centimetres and millimetres.

• Ruler A: $4.5 \text{ cm}$ and $45 \text{ mm}$

• Ruler B: $10.8 \text{ cm}$ and $108 \text{ mm}$

• Ruler C: $7.3 \text{ cm}$ and $73 \text{ mm}$

• Ruler D: $16.5 \text{ cm}$ and $165 \text{ mm}$

• Ruler E: $2.8 \text{ cm}$ and $28 \text{ mm}$

• a) Express these measurements in centimetres and millimetres.

  • A: $\boxed{4.5 \text{ cm}, 45 \text{ mm}}$
  • B: $\boxed{10.8 \text{ cm}, 108 \text{ mm}}$
  • C: $\boxed{7.3 \text{ cm}, 73 \text{ mm}}$
  • D: $\boxed{16.5 \text{ cm}, 165 \text{ mm}}$
  • E: $\boxed{2.8 \text{ cm}, 28 \text{ mm}}$

• b) Express these measurements in millimetres only.

  • A: $\boxed{45 \text{ mm}}$
  • B: $\boxed{108 \text{ mm}}$
  • C: $\boxed{73 \text{ mm}}$
  • D: $\boxed{165 \text{ mm}}$
  • E: $\boxed{28 \text{ mm}}$

• c) Express these measurements in centimetres only.

  • A: $\boxed{4.5 \text{ cm}}$
  • B: $\boxed{10.8 \text{ cm}}$
  • C: $\boxed{7.3 \text{ cm}}$
  • D: $\boxed{16.5 \text{ cm}}$
  • E: $\boxed{2.8 \text{ cm}}$