Mathematics Revision Questions

Approximate 3572 to 3 significant figures:

• 3560

• 3570

• 3600

• 3700

23750 rounded to the nearest thousand is:

• 24000

• 23500

• 20000

• 25000

2.3485 correct to 3 decimal places is:

• 2.349

• 2.358

• 2.34

• 2.348

Round 0.0075408 correct to 2 significant figures:

• 0.001

• 0.0075

• 0.00754

• 0.007541

What is the value of the digit 7 in the number 624.197?

• Hundreds

• Tens

• Hundredths

• thousandths

What is the value of 5 in the number 45326?

• 5

• 50000

• 5000

• 500

Evaluate : 1101₂ - 110₂

• 1001₂

• 1100₂

• 111₂

• 1011₂

Evaluate: 1101₂ x 11₂

• 100111₂

• 111010₂

• 101010₂

• 100110₂

Convert denary number 59 to a number in binary

• 110101₂

• 111011₂

• 110111₂

• 100101₂

Convert 158 to a number in base two:

• 11101100₂

• 10110010₂

• 10011110₂

• 10011101₂