Multiple Choice
A person who is calculating the exact answer to 18 × 15 mentally starts by thinking about factors of 18. The person would finish the mental calculation by calculating:
A) 9 × 30.
B) 27 × 10.
C) 36 × 7.5.
D) 60 × 4.5.
Correct Answer:
Verified
Correct Answer:
Verified
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