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19 - Mathematics M1.NT.1 - Sets, Factors, HCF & LCM

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✅EvaluateQuestion 1 of 23

Which symbol represents the set of integers?

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✅EvaluateQuestion 2 of 23

Which of these is NOT a natural number?

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✅EvaluateQuestion 3 of 23

Which is an example of an irrational number?

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✅EvaluateQuestion 4 of 23

List the FIRST four multiples of 7.

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✅EvaluateQuestion 5 of 23

How many positive factors does 10 have?

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✅EvaluateQuestion 6 of 23

Which set contains the number −3?

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✅EvaluateQuestion 7 of 23

What is the H.C.F. of 8 and 12?

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✅EvaluateQuestion 8 of 23

At Castries Market, a vendor sells 24 pawpaws and 36 plantains. She wants to make IDENTICAL gift baskets using all the fruit and the largest possible number of baskets. How many baskets can she make?

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✅EvaluateQuestion 9 of 23

Find the L.C.M. of 4, 6 and 9.

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✅EvaluateQuestion 10 of 23

Which is rational? (i) 0.444… (ii) √16 (iii) π/2

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✅EvaluateQuestion 11 of 23

Which statement about prime numbers is TRUE?

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✅EvaluateQuestion 12 of 23

A Trinidad lighthouse flashes every 15 s; another flashes every 20 s. They flash together. After how many seconds do they next flash together?

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✅EvaluateQuestion 13 of 23

Which is the prime factorization of 84?

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✅EvaluateQuestion 14 of 23

In Belize a baker has 60 buns and 90 patties to share equally among children with no leftovers. The largest number of children she can serve is

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✅EvaluateQuestion 15 of 23

Find two consecutive whole numbers x and x + 1 whose H.C.F. is always

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✅EvaluateQuestion 16 of 23

If H.C.F.(a, b) = 6 and L.C.M.(a, b) = 90, then a × b =

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✅EvaluateQuestion 17 of 23

At a Guyana school party there are 48 jellies and 72 cupcakes. Each goodie-bag must contain the same number of each item, and there must be the SMALLEST possible number of bags. How many bags are needed?

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✅EvaluateQuestion 18 of 23

Which of the following is TRUE for any two positive integers a and b?

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✅EvaluateQuestion 19 of 23

How many positive factors does 60 have?

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✅EvaluateQuestion 20 of 23

Which number is BOTH the H.C.F. of {18, 24} and a factor of 90?

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✅EvaluateQuestion 21 of 23

Three boats leave Port-of-Spain harbour together at noon. They return every 8, 12 and 18 days respectively. On which day will all three be in port together again?

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✅EvaluateQuestion 22 of 23

Summarize the key ideas about number families and their properties.

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✅EvaluateQuestion 23 of 23

What is the relationship between the families of numbers?

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✅EvaluateQuestion 1 of 23

Which symbol represents the set of integers?

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