5.2: Decimal Operations (Part 1)

When we multiply two numbers with decimals, we count all the decimal places in the factors—in this case two plus three—to get the number of decimal places in the product—in this case five.

There is a pattern that we can use. Place value names. Next tutorial. Step 3. The procedure for multiplying decimals will make sense if we first review multiplying fractions. Place the decimal point. The rules for multiplying positive and negative numbers apply to decimals, too, of course. Before you get started, take this readiness quiz. Multiply 2. The quality of the instrumentation is better, than that used by Scientist A, but the result is still limited to only 4 significant digits.

Suppose, however, you decide to leave all the 0s out of the chart. The amount of output space is the same, but the information is left-justified. T Tips for tutors Place value Zero as a placeholder Summary of I the importance of zero in filling the gaps in numbers. If we subtract 7.

Finally, write the product with the appropriate sign. Value of a digit. So hopefully, when you write it out like this, it gives you a sense of what it means we say place value. But to make sure that we really understand what this means, I'm going to rewrite this number.

Decimal Number System nzmaths

The product is positive. Jim plays bridge Linda plays bridge Lori plays bridge If no width is given, awk prints values using the smallest number of characters possible. BBC Skillswise. There is a pattern that we can use. Exercise 5. Leading zeros serve no purpose in a number, so dropping them is customary. Solution Write the numbers vertically so the decimal points line up. So this right here that is the hundreds place, or you could view that as the 10 to the second's place, which is the same thing as hundred.

Quick tips for tutors Factsheet: So let's think about that a little bit. We can use this pattern as a shortcut to multiply by powers of ten instead of multiplying using the vertical format.