Practice problem
Which of the following is a representation of 5×1235\times1235×123?
5×(1+2+3)5\times(1+2+3)5×(1+2+3)
5×(100+20+3)5\times(100+20+3)5×(100+20+3)
5×(1+23)5\times(1+23)5×(1+23)
5×(12+3)5\times(12+3)5×(12+3)
Type a concept, like “slope” or “photosynthesis”.
