GRADE 8 TEST 1

Find the HCF of 84 and 210.

• 42
• 21

• 84

• 210

Find the LCM of 84 and 210.

• 420
• 210

• 150

• 840

Which of the numbers 3, 5, 6 and 8 will divide into 6320 without leaving a remainder?

• 8

• 5

• 6

• 3

Find the smallest number by which 350 must be multiplied to give a perfect square.

• 14
• 11

• 12

• 13

Find the smallest number that must be added to 350 to give a perfect square.

• 11
• 12

• 13

• 14

Express 3 500 000 in standard form

Express 3 in standard form.

Express 0.000467 in standard form.

• 18a