ECA lesson 2

Find HCF of 60 and 150.

• 10

• 30

• 60

• 150

Find LCM of 60 and 150.

• 60

• 30

• 150

• 300

Write down 36 as product of its prime factors.

• 2×12

• 2×2×9

• 2×2×3×3

• 4×3×3

Express 48 as a product of its prime factors.

• 2 x 24

• 2 x 2 x 12

• 2 x 2 x 2 x 2 x 3

• 3 x 16

Determine the LCM of 36 and 48.

• 72

• 108

• 144

• 192

平方

立方

Write down the value of √100

Write down the value of ∛(-64).

Arrange -10, -18, -30, -0.5, 1/3, 4, 10, π in descending order.