Solving Problem With Decimals
Learn About the Game Solving Problem With Decimals
This activity guides you through basic decimal operations. It covers adding, subtracting, multiplying and dividing numbers with decimals. Each section breaks down the process into simple steps. You get clear guidance at every stage.
In the decimal practice area you find exercises for each calculation type. You work at your own pace. Repeat any part and confirm each step makes sense. New lessons arrive later to expand your skills.
Line up decimal points under each other. Add figures from the right. Carry any extra digit to the next column. Place the decimal in your answer right under the ones above. Trim or round the result to the needed number of places.
- Align the decimal points of the numbers being subtracted.
- Subtract as usual, starting with the rightmost column and borrowing if necessary.
- Place the decimal point in the difference directly below the decimal point in the original numbers.
- Round to the appropriate number of decimal places, if needed.
- Ignore the decimal points and multiply the numbers as if they were whole numbers.
- Count the total number of digits to the right of the decimal point in the original numbers.
- Place the decimal point in the product so that the total number of digits to the right of the decimal point is equal to the number counted in step 2.
- Round to the appropriate number of decimal places, if needed.
- Move the decimal point in the divisor (the number you are dividing by) to the right until it becomes a whole number.
- Move the decimal point in the dividend (the number you are dividing) the same number of places to the right as you did in step 1.
- Divide as usual, ignoring the decimal points.
- Place the decimal point in the quotient directly above the decimal point in the dividend.
- Round to the appropriate number of decimal places, if needed.
Always double check the placement of the decimal point to avoid errors in your calculations.