Why Was 5 x 3 = 5 + 5 + 5 Marked Wrong
Brett Berry
4.6K753

That is silly — multiplication is commutative — if you don’t teach them that 5*3 = 3*5, then you are not teaching them properly — the order has no meaning — We are dealing with scalar quantities, not time dependent quantities like medicines.

One clap, two clap, three clap, forty?

By clapping more or less, you can signal to us which stories really stand out.