Question

1. the new playground needed 8 tons of sand. if only 5 tons was delivered, how much more is needed to finish the project?

Explanation:

Step1: Identify required and delivered sand

Required sand: $0.8$ tons; Delivered sand: $0.55$ tons

Step2: Calculate remaining sand needed

$\text{Remaining sand} = 0.8 - 0.55$

Answer:

$0.25$ tons