Question
Could you use doubling to multiply 7x 3? explain
Answers
Reiny
sure you could
how about double the 7, then double again, and then subtract 7
7(2)(2) - 7
= 7(4-1)
= 7(3)
how about double the 7, then double again, and then subtract 7
7(2)(2) - 7
= 7(4-1)
= 7(3)
deven
21