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CHOOSE OR LOSE
PLAY
You start the game with 50 points. Each question has 2 to 4 answers. Select the correct answer before your time runs out to score points. Right answers are +10, wrong answers are -2, out of time is -5.

This is a timed game. Your final score is equal to the total score minus time taken.
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Game: CHOOSE OR LOSE

Aim: Choose the right answer; beat the clock

Method:
You start the game with 50 points. Each question has 2 to 4 answers. Select the correct answer before your time runs out to score points. Right answers are +10, wrong answers are -2, out of time is -5.

This is a timed game. Your final score is equal to the total score minus time taken.

Complements of number one
      
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CHOOSE OR LOSE 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 Choose or lose 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.

Select the correct answers to the elementary math problems before the clock counts you out

Large thumbnail for math game Choose or lose

Our CHOOSE OR LOSE game is a simple activity to help elementary math learners and will improve the speed at which you can solve problems in the given topic. It does not rely on the learner typing in the answer. Rather, the learner must choose the correct answer from a list of 2, 3 or 4 similar answers.

CHOOSE OR LOSE encourages faster problem-solving for common and vital elementary math topics. CHOOSE OR LOSE is a timed game with a leaderboard for each topic at each of the 4 levels on offer. You can play the game with or without audio and robots.

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How to play Choose or lose to practice
'Complements of number one' for 4th grade

Free Math Games screenshot of Chose or lose game for elementary

Our CHOOSE OR LOSE game asks the learner to click on the correct answer from a selection of possible answers before the clock runs down.

  1. Click on PLAY to start.
  2. You are presented with a topic question, then a list or grid of 2 to 4 possible answers (depending on the topic you have chosen).
  3. You must select the correct answer by clicking on it before the clock counts down.
  4. You have 10 seconds in total to answer each question.
  5. The clock starts ticking down 5 seconds after the answers have appeared.
  6. To hear the question again, click / tap on the question box.
  7. The browser will speak the potential answers on rolling-over them.
  8. A correct answer gains you 10 points.
  9. A wrong answer loses you 2 points.
  10. A time-out loses you 5 points.
  11. A score is kept of correct answers against number of answers.
  12. The game is timed, and your final score (points earned minus time taken) is given at the end of the game. Top 10 scores for a topic get you a place on the leaderboard.
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