Question

A student writes 23 43 = 86. Another student says it’s wrong. Explain why it’s wrong.

Answer 1

It’s wrong because in an equation there must be signs that make it an equation. For example 2+2=4 is an equation cause it has the correct signs and numbers but 2 2=4 is wrong because even though we can predict that it would be adding we don’t really know if it could be used in other ways

Answer 2

because it has no sign if it is plus sign, minus sign etc.