# Decimal Computation My Saved Sheets. Frequently Asked Questions. Help Support the Site. Decimal Worksheets. Want to help support the site and remove the ads? Become a patron via patreon.

Decimal Location link. Example Hover to Enlarge Description Download 4nf6 Finding Decimals on Number Line 10ths and ths Each worksheet has 16 problems identifying the location of a decimal on a number line. Each worksheet has 20 problems determining if a number is less, more or equal to half.

Each worksheet has 8 problems using numberlines to show decimal expansion. Determining Decimal Value link. Each worksheet has 20 problems rewriting a fraction as a decimal with a repeating number.

## Out to Lunch: Decimal Operations with a Menu -

Each worksheet has 9 problems indentifying shaded value with multiple choice answers. Each worksheet has 10 problems using place value blocks to identify a number. Each worksheet has 20 problems converting from a decimal to a percent with a number less than 1. Each worksheet has 10 problems using a number line to solve a subtraction problem.

Each worksheet has 10 problems using a number line to solve an addition problem. Example Hover to Enlarge Description Download 5nbt7 Placing Decimals Each worksheet has 20 problems determining where to place the decimal in a multiplication problem.

Each worksheet has 20 problems understanding multiplying two decimal numbers. Each worksheet has 20 problems multiplying and dividing decimal numbers by powers of ten. Each worksheet has 20 problems multiplying or dividing a decimal number by a multiple of Each worksheet has 12 problems using decimal knowledge to estimate the answer. Truncate: 6. Decide to increment since 59 is more than half way to Incrementing results in the necessity to regroup the tenths into an extra one whole, so the result is 7.

Watch that students do not write 6. You will want to correct them right away in that case.

One last note: if there are three truncated digits then the question becomes is the number more than half way to Likewise, for one digit; is the number more than half way to 9. And so on We should also mention that in some scientific and mathematical "circles," rounding is slightly different "on a 5".

For example, most people would round up on a 5 such as: 6. A different way to round on a 5, however, is to round to the nearest even number, so 5. The main reason for this is not to skew the results of a large number of rounding events. If you always round up on a 5, on average, you will have slightly higher results than you should.

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## Penguin Decimal Computation Scoot

Because most pre-college students round up on a 5, that is what we have done in the worksheets that follow. Comparing and ordering decimals worksheets to help students recognize ordinality in decimal numbers. The comparing decimals worksheets have students compare pairs of numbers and the ordering decimals worksheets have students compare a list of numbers by sorting them.

Students who have mastered comparing whole numbers should find comparing decimals to be fairly easy. The easiest strategy is to compare the numbers before the decimal the whole number part first and only compare the decimal parts if the whole number parts are equal. For example, if a student thinks that 4. In the worksheets in this section, "tight" means that the numbers are close to one another rather than random. Ordering decimals is very much like comparing decimals except there are more than two numbers. Checking the list at the end is always a good idea. Converting decimals worksheets mainly for converting between decimals and fractions but also to percents and ratios. There are many good reasons for converting decimals to other number formats. Dealing with a fraction in operations is often easier than the equivalent decimal. Consider 0.

Multipling by 0. Adding and subtracting decimals worksheets with various difficulties including adding and subtracting by themselves and also mixed on the page. Try the following mental addition strategy for decimals. Begin by ignoring the decimals in the addition question. Add the numbers as if they were whole numbers.

For example, 3. Use an estimate to decide where to place the decimal. In the example, 3. Base ten blocks can be used for decimal subtraction. Just redefine the blocks, so the big block is a one, the flat is a tenth, the rod is a hundredth and the little cube is a thousandth. Model and subtract decimals using base ten blocks, so students can "see" how decimals really work.

Adding and subtracting decimals is fairly straightforward when all the decimals are lined up. With the questions arranged horizontally, students are challenged to understand place value as it relates to decimals. A wonderful strategy for placing the decimal is to use estimation. For example if the question is Estimate by rounding The decimal in must be placed between the 9 and the 3 as in The above strategy will go a long way in students understanding operations with decimals, but it is also important that they have a strong foundation in place value and a proficiency with efficient strategies to be completely successful with these questions. Decimal Computation Decimal Computation Decimal Computation Decimal Computation Decimal Computation Decimal Computation