BMO Quiz 1

Find the value of 15 + 10 x 2 ÷ 4 - (-7). Show your workings clearly.

Answer explanation

BODMAS

15 + 10 x 2 ÷ 4 - (-7)

= 15 + 10 x 2 ÷ 4 + 7

= 15 + 20 ÷ 4 + 7

= 15 + 5 + 7

= 27

A number with 2 or more factors is called

• Integers

• Composite number

• Prime number

• Rational numbers

Which of the following is NOT a rational number?

• 3.14

• π

Which of the following numbers in the long division is called the divisor?

• 113

• 3

• 339

• 0

What is the value of 20 hundreds, 3 tenths and 12 hundredths?

Answer explanation

20 hundreds = 20 x 100 = 2000

3 tenths = 3/10 = 0.3

12 hundredths = 12/100 = 0.12

2000 + 0.3 + 0.12 = 2000.42

Round off 0.069899 to 4 significant figures.

When a decimal is multiplied by 10³, the decimal point is shifted

• 3 places to the left

• 4 places to the left

• 3 places to the right

• 4 places to the right

Refer to the diagram.

• 5.502 cm

• 5.504 cm

• 5.52 cm

• 5.54 cm

(+) x (-) =

• (+)

• (-)