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- 1. Multiple Choice
Find the HCF of 21 and 28
3
4
7
14
- 2. Multiple ChoiceWhat is the LCM of 4 and 12?481216
- 3. Multiple ChoiceFind the HCF of 12 and 15 ?22 x 3360
- 4. Multiple ChoiceFind the HCF of 40 and 60?102030None of the above
- 5. Multiple ChoiceFind the HCF of 30 and 362346
- 6. Multiple Choice
Find the LCM of 12 and 16...
48
36
64
96
- 7. Multiple Choice
A carpenter got given some free wooden planks. Some are 12m long and some are 18m long. She wants to cut them up so that she has equal size planks to make using them easier. What size planks should she cut them into to avoid wasting any wood?
HCF
LCM
- 8. Multiple Choice
The least common multiple of 12, 30, and 40 is…
40
60
120
160
- 9. Multiple Choice
The highest common factor of 28, 42, and 76 is….
14
7
4
2
- 10. Multiple Choice
Find the HCF for 18, 36, and 81
3
2
6
9
- Answer choicesTagsAnswer choicesTags