Math Practice 101
Homework Explained - Math Practice 101

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Grade 4 HMH Go Math - Answer Keys


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  • Question 20 (request help)

    Which quotients are equal to 20? Mark all that apply.
    • 600 ÷ 2
    • 1,200 ÷ 6
    • 180 ÷ 9
    • 140 ÷ 7
    • 500 ÷ 5

Insect Flight

True flight is shared only by insects, bats, and birds. Flight in insects varies from the clumsy flight of some beetles to the acrobatic moves of dragonflies.

The wings of insects are not moved by muscles  attached to the wings. Muscles in the middle part of the body, or thorax, move the wings. The thorax changes shape as the wings move.

  • Question 21 (request help)

    About how many times does a damselfly’s wings beat in 1 minute?
  •    times
  • Question 22 (request help)

    About how many times do a scorpion fly’s wings beat in 6 minutes?
  •    times
  • Question 23 (request help)

    In one minute, about how many more times do a damselfly’s wings beat than a large white butterfly’s wings?
  •    more times
  • Question 24 (request help)

    What’s the Question? The answer is about 2,300 times.
  • Type below:

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