Which strategies can be used to solve this problem?

the population of grayville is 2,345 people. rosetown has 1,123 fewer people than grayville. newtown has 1,020 more people than rosetown. how many people live in newtown?

choose all answers that are correct.

a.
translate into an equation.
2,345 – 1,123 + 1,020 = p

b.
work backward.
add 1,020 to the population of rosetown (1,123). subtract this from the population of grayville (2,345).

c.
use logical reasoning.
start with the population you already know (grayville = 2,345). subtract rosetown's 1,123 fewer people than grayville. add 1,020 to this amount because newtown has 1,020 more people than rosetown.

d.
draw a diagram.
draw 3 large circles. write 2,345 in the first circle and write 1,123 in the second circle. add the 2 amounts and subtract 1,020 from the sum. write this amount in the third circle.