They benefit from seeing several solutions and from conversing in the language of math. Employers expect their employees to be able to solve problems and to work with others in finding solutions. The 4th grade was building a cage for its new guinea pig. The students had to measure the space where the cage would go and plan how much wood and wire to order. Then they shopped for the best bargain.
Students use math in all areas of the curriculum.
Think of the many different ways math can be part of geography, science, music, art, stories, or drama. When students experience math in all areas of learning, they become comfortable with numbers and see ways math is useful. The math program uses more than one approach. Learning mathematics comes pretty easily to some. But most people have to work at understanding at some time or other.