1.2.2 DECIMALS: SIGNIFICANT FIGURES

Round 172 to 2 significant figures

Round 12.6 to 2 significant figures

Round 4.282 to 2 significant figures

Round 0.256 to 2 significant figures

Use calculator to carry out the following calculations. In each case, give your answer correct to the significant figures indicated.

• 186.25

• 190

• 180

• 190.00

Use calculator to carry out the following calculations. In each case, give your answer correct to the significant figures indicated

• 0.429

• 0.428

• 0.43

• 0.4290

Use calculator to carry out the following calculations. In each case, give your answer correct to the significant figures indicated.

• 0.07

• 0.0700

• 0.070

• 0.0701

Use calculator to carry out the following calculations. In each case, give your answer correct to the significant figures indicated.

• 0.2310

• 0.2320

• 0.231

• 0.232

Use calculator to carry out the following calculations. In each case, give your answer correct to the significant figures indicated.

• 1.6

• 2

• 2.0

• 1.0

Use calculator to carry out the following calculations. In each case, give your answer correct to the significant figures indicated.

• 2.0

• 1.9

• 2

• 1.90