Skip to content
LessonPrint

What One Adds to the Other is a free printable Grade 4 English worksheet on identifying what a second text adds to the first, aligned to Common Core standard RI.4.9. It prints 8 questions with an answer key on its own sheet of paper, in 25 versions that each ask different questions, so no two students in the class work from the same page. Print it from the browser or download it as a PDF — no account, no email.

Set 13 of 25 · the same problems every time you open this link.

Next set

One paper per student

12345678910111213141516171819202122232425

Set 1 has all 25 in a single PDF. All 25 sets ask different questions.

What One Adds to the Other

RI.4.9

NameDate

Circle the right answer.

1.Text 1 says volcanoes form where hot rock rises. Text 2 says the ash from one eruption cooled the whole world for a year. What does Text 2 add?
  • A.How far an eruption's effects can reach
  • B.What lava is made of
  • C.Where volcanoes form
2.Text 1 says beavers build dams from sticks and mud. Text 2 says the dams slow rivers and store water for dry summers. What does Text 2 add?
  • A.How beavers build their dams
  • B.What beavers eat
  • C.What the dams do for the land
3.Text 1 says honeybees live in hives of thousands. Text 2 says farmers rent hives so bees will pollinate their orchards. What does Text 2 add?
  • A.How people depend on bees
  • B.How many bees live in a hive
  • C.How bees make honey
4.Text 1 says the Romans built straight roads across Britain. Text 2 says soldiers could march twenty miles a day on them. What does Text 2 add?
  • A.Who built the roads
  • B.Why the roads mattered to the army
  • C.What the roads were made of
5.Text 1 says wolves were brought back to Yellowstone in 1995. Text 2 says elk stopped grazing by the rivers once the wolves returned. What does Text 2 add?
  • A.How many wolves there were
  • B.One effect the wolves had on other animals
  • C.The year the wolves returned
6.Text 1 says the Great Wall of China is thousands of kilometers long. Text 2 says it was built over many centuries by different rulers. What does Text 2 add?
  • A.How long the wall is
  • B.How long it took and who built it
  • C.What country the wall is in
7.Text 1 says the Wright brothers flew the first powered plane in 1903. Text 2 says the flight lasted twelve seconds. What does Text 2 add?
  • A.Who flew the first plane
  • B.How short the first flight was
  • C.The year of the first flight
8.Text 1 says coral is built by tiny animals called polyps. Text 2 says warm water makes polyps push out the algae that feed them. What does Text 2 add?
  • A.Why coral can turn pale and starve
  • B.What builds coral
  • C.Where the biggest reef is

LessonPrint · RI.4.9 · Set 13 · free to copy for classroom use

Answer key — What One Adds to the Other

Set 13. Prints on its own sheet.

  1. 1.How far an eruption's effects can reach
  2. 2.What the dams do for the land
  3. 3.How people depend on bees
  4. 4.Why the roads mattered to the army
  5. 5.One effect the wolves had on other animals
  6. 6.How long it took and who built it
  7. 7.How short the first flight was
  8. 8.Why coral can turn pale and starve

Last reviewed 2026-09-05. Aligned to RI.4.9 of the Common Core State Standards for English Language Arts.