green grass

Describe the grass with the color word used in your language for healthy grass, which may or may not be the color green.

groups of hundreds and fifties

This refers to the number of people in each of the groups. AT: "about fifty people in some groups and about a hundred people in other groups" (See: rc://en/ta/man/translate/translate-numbers and rc://en/ta/man/translate/figs-explicit)

This means that he looked up toward the sky, which is associated with the place where God lives.

"he spoke a blessing" or "he gave thanks"

"he divided the two fish so that everyone could have some"