CSEC Multiple Choice Practice Questions S1

The number 30.2507 correct to 3 significant figures is:

• 30.0

• 30.3

• 30.25

• 20.251

The number 1.51071 written correct to 3 decimal places is:

• 1.150

• 1.511

• 1.157

• 1.160

10 written in scientific notation is:

Which of the following is not a form of approximation for the number 245.89?

• Writing the number correct to 1 decimal place

• Writing the number correct to 2 significant figures

• Writing the number in scientific notation

• Rounding off the number to the nearest whole number

0.6 to the nearest whole number is

• 0

• 1

• 5

• 6

• 0

• 1

• {0, 1, 2, 3, 4 ...}

• {1, 2, 3, 4, ...}

Which of the following are irrational numbers?

The next term in the sequence 1, 8, 15, 22, 29, __ is?

• 35

• 36

• 37

• 38

The next term in the sequence 3, 8, 15, 24, 25, 48, __ is?

• 63

• 65

• 68

• 67

The next term in the sequence 3, 9, 27, __ is?

• 36

• 60

• 72

• 81