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THE FROG FLIES
PLAY
Instructions graphic for math game the-frog-flies
...

Game: THE FROG FLIES

Aim: Help the frog catch the flies

Method:
Use keyboard arrow keys or tap your tablet/mobile to control the frog and catch the flies. Avoid the birds! Answer the math questions to win additional points.

Scoring is based on speed, flies caught and the number of correct answers.

Complements of number one
      
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THE FROG FLIES game to practice
'Complements of number one' for 4th grade

Decimal complements: complements of 1

Decimal complements refer to the process of finding the complement of a decimal number with respect to a target number. In this topic, complements to 1, complement means the value that, when added to the given decimal number, will result in a sum of 1.

To find the decimal complement to 1, you can follow these steps:

  1. Start with the given decimal number.
  2. Subtract the decimal number from 1.
  3. The result will be the decimal complement to 1.

For example, let's say we want to find the decimal complement to 1 of the number 0.75.

1 - 0.75 = 0.25

So, the decimal complement to 1 of 0.75 is 0.25.

Another example: Let's find the decimal complement to 1 of the number 0.412.

This is not as easy as the first example because the subtraction is harder:

1 - 0.412

Of course you can use a calculator to do this, but as mental arithmetic, the easiest way is to think of the digits after the point as a separate value, in this case 412. Because there are 3 digits, we subtract it from 1000, so we get 1000 - 412 = 588

Putting the decimal point back in, we can say:

1 - 0.412 = 0.588

So, the decimal complement to 1 of 0.412 is 0.588

With our The frog flies math game you will be practicing the topic "Complements of number one" from 4th grade / Decimals / Add decimals. The math in this game consists of 16 questions that ask you to identify the missing decimal complement to 1.

Guide the frog to catch the flies to answer questions and score points

Large thumbnail for math game The frog flies

Learn or revise math with our fun interactive game THE FROG FLIES! You are a happy hungry frog in the middle of the jungle in the middle of the night. Catch the flies for your supper (and practice math just for fun).

You can play the game on tablet/mobile or desktop computer. On handheld devices you move the frog by tapping where you want it to move to. On a computer, use the arrow keys on your keyboard to move.

Sometimes a big bird swoops through the forest catching unwary amphibians so stay alert and get out of the way of its beak!

Scoring is based on flies caught, questions answered and number of deaths by bird. Your final score is your total points minus your time in seconds.

The highest scores for each topic can be saved and seen by clicking on the star button, so get learning and get your frog's name up in lights!

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How to play THE FROG FLIES to practice
'Complements of number one' for 4th grade

Free Math Games screenshot of THE FROG FLIES game for elementary

  1. Choose THE FROG FLIES from the math games page.
  2. On the settings page read the Method text, then click on PLAY to start the game.
  3. You are a small hungry frog sitting on a branch in a big jungle in the middle of the night.
  4. A fly is buzzing around above your head.
  5. Use your keyboard arrow keys or tap the screen on your tablet to move the frog and catch the fly.
  6. You get 10 points for each fly you catch.
  7. Catching a fly unlocks a question from the topic you have chosen.
  8. Match the question to the correct answer, or type in the answer on your keyboard.
  9. If you answer correctly you score an additional 50 points - a wrong answer loses you 20 points.
  10. Additional branches are added to the scene occasionally
  11. Continue to catch flies and answer questions.
  12. Avoid the bird that flies across the screen - it will cost you 10 points if it gets you.
  13. Your final score is calculated by taking your time away from the points you have scored.
  14. Getting one of the 10 highest scores for a topic earns you a place on the leaderboard (if you want it).

Sound effects for this game supplied by freesfx.co.uk.

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