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Try these questions

5 questions from this lesson’s quiz. Start the lesson to answer them and see the right answers.

1. 1. A trader wants to pack 48 mangoes and 60 oranges into identical baskets so that no fruit is left over and each basket is as full as possible. Which calculation should she use?

   • A. LCM of 48 and 60
   • B. GCD of 48 and 60
   • C. 48 \times 60
   • D. 48 + 60

2. 2. Find the GCD of 45 and 75 using prime factorisation in power form.

   Type your answer in the lesson.

3. 3. Two buses leave a station together. One leaves every 24 minutes and the other every 36 minutes. After how many minutes will they next leave together?

   Type your answer (in minutes) in the lesson.

4. 4. Which of these is the prime factorisation of 90 in power form?

   • A. 2 \times 3 \times 5
   • B. 2^2 \times 3 \times 5
   • C. 2 \times 3^2 \times 5
   • D. 2 \times 3 \times 5^2

5. 5. What is the name for using technology, such as a spreadsheet, to confirm an answer you worked out by hand?

   Type your answer in the lesson.

More in Factors

• ▸Composite Numbers as a Product of Prime Factors
• ▸Greatest Common Divisor by Factor Method
• ▸Least Common Multiple by the Factor Method
• ▸Applying GCD and LCM in Real Life Situations
• ▸Comparing and Ordering Fractions
• ▸Adding Fractions
• ▸Subtracting Fractions
• ▸Multiplying Fractions

See every Grade 7 Mathematics lesson →