Addition
4,238 + 3,761
7,999
1,000 − 428
572
Value of the 8 in 28,415?
8,000
Trees provide homes for birds, squirrels, and insects.
What's the main idea?
Main Idea: Trees provide habitats for animals.
What is the tallest animal?
Giraffe
8,946 + 5,237
14,183
8,420 − 3,987
4,433
Round 76,482 to the nearest ten thousand.
80,000
Exercise strengthens muscles and keeps the heart healthy.
What's the Main Idea?
Main Idea: Exercise helps your body stay healthy.
How many continents are there?
7
12,567 + 9,876
22,443
14,500 − 6,879
7,621
Expanded form of 406,018
400,000 + 6,000 + 10 + 8
Volcanoes form when hot magma rises to Earth's surface.
What's the main idea?
Main Idea: Volcanoes form from rising magma.
What is the fastest land animal?
Cheetah
45,638 + 29,487
75,125
50,000 − 18,346
31,654
Standard form: 300,000 + 40,000 + 500 + 20 + 4
340,524
Recycling paper, plastic, and glass helps reduce waste.
What's the Main Idea?
Main Idea: Recycling helps the environment.
What is the capital of Iowa?
Des Moines
256,437 + 143,589
400,026
300,000 − 145,987
154,013
Compare: 598,321 ___ 598,231
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Astronauts train for years before going into space.
What's the Main Idea?
Main Idea: Astronauts train extensively for space missions.
What galaxy does Earth live in?
The Milky Way