Rounding to significant figures

What is 78.5 rounded to one significant figure?

• 79

• 78.5

• 70

• 80

What is 0.658 rounded to 1 significant figure?

• 0

• 0.66

• 0.7

• 0.658

Round 0.0005630 to 2 significant figures.

• 0.000563
• 0.00056
• 56
• 0.56

Round 0.0002568700 to 3 significant figures.

• 0.000256
• 0.000257
• 0.0002570000
• 0.0002560000

Round 52689 to 3 significant figures.

• 526
• 527
• 52600
• 52700

Round 52689 to 3 significant figures.

• 526
• 527
• 52600
• 52700

Round 1047.78 to three significant figures.

• 104

• 105

• 1050

• 1050.00

Round 1047.78 to three sig figs

• 104
• 105
• 1050
• 1050.00

State the following number 856.7 to 3 significant figures

• 857

• 860

• 856.70

• 856

Round 15.3481 to 3 significant figures.

• 15.3

• 15.4

• 15.348

• 15.349