12 - 5 = 7 Just like with addition, we can use a part-whole model to help partition larger numbers to make them easier to deal with in subtraction problems. First, partition 35 into 30 and 5.

A fraction can be a proper fraction or an improper fraction. An improper fraction written as an integer with a fraction is called a mixed number.

Evidence from 2,000-year-old DNA reveals that women in Celtic society stayed in their ancestral communities after marriage, whereas men were mobile, and that the southern coast of Britain was a ...