Problem Solving DLO

This is my DLO of the problem: Mr Murrin is 160cm tall and his brother Tom is 7/8 as tall as him. How tall is Tom? This was one of the three problems Ms K gave us to solve

Maths problem solving

Today Shannon and I worked on this maths problem: A computer processes information in nanoseconds. A nanosecond is one billionth of a second. Write this number as a decimal.
Answer: 0.000000001