ESTIMATING MEASURES

We do not always have instruments to measure things. Sometimes we need to get a rough idea of the length, mass and capacity of objects. This rough idea of length, mass and capacity is called estimation.

Length

about 15 cm long about 1.8 m long about 18 m long

Weight

about 5 g about 200 g about 4 kg

Capacity

about 10 m about 500 m about 500

Estimate and tick ( ✓ ) the most appropriate measure.

a. b. c.

weight capacity length

kg g m m km

Estimate and tick ( ✓ ) the measurement of each of the following objects.

a. quantity of water in a bucket

i. less than 1 ii. about 1 iii. more than 1

b. length of your water bottle

i. less than 5 cm ii. about 5 cm iii. more than 5 cm