CAPS · Grade 8 · R
Is 564 divisible by 4? Use the divisibility rule — do NOT do the actual division.
Show that the HCF of 30 and 12 is 6.
Express 20 as a product of prime factors, using exponents.
Write down ALL the factors of 40, in factor pairs.
Is 67 prime or composite? Show why.
12 apples and 18 naartjies are packed into identical fruit baskets with no fruit left over. What is the greatest number of baskets that can be packed?
Determine the LCM of 60 and 84 by using prime factors.
28 apples and 36 naartjies are packed into identical fruit baskets with no fruit left over. What is the greatest number of baskets that can be packed?
Express 50 as a product of prime factors, using exponents.
Determine the LCM of 14 and 12 by using prime factors.
Is 71 prime or composite? Show why.
Show that the LCM of 84 and 96 is 672.