Question

Robin says,"I can find 8×7 by multiplying 3×7 and doubling it". Does her statement make sense. Explain your answer.

Answer 1

No her statement does not make sense because 8X7 is 56. (3X7) x2 is 42.

Answer 2

no, because 8x7 is 56 while 2(3x7) is 42 and the equations would not equal each other, therefore robin is wrong.