Approx. & Sig. Fig.

Round off 657 to the nearest 100g

• 700g

• 400g

• 660g

• 600g

Round off 469.41cm to the nearest cm

• 470cm

• 469cm

• 469.4cm

• 500cm

Round off 3469 to the nearest 1000 pupils

• 3400

• 3500

• 3000

• 4000

Express 49.012 to 1 significant figure.

• 49.0

• 50

• 49

• 49.01

Express 0.005439 to 3 significant figures.

• 0.00544

• 0.005

• 0.0054

Express 13.006 to 3 significant figures.

• 13

• 13.0

• 10

Express 3.04832 to 3 significant figures.

• 3.04

• 3.048

• 3.05

Express 426 870 to 3 significant figures.

• 400 000

• 427 000

• 426 900

Express 0.050017 to 3 significant figures.

• 0.0500

• 0.5002

• 0.00501

Express 1 438 906 to 2 significant figures.

• 1 500 000

• 1 430 000

• 1 400 000

• 1 440 000