How did estimate help you place the decimsl point in a product correctly.

1 answer:

5 0

After you have multiplied but you have all these numbers, look to see how many decimal places the numbers you have multiplied.
Lets say you multiply:
23.45
x 2.1
= 49.245
Because your first number had 2 decimal places and your second number had 1 decimal place you add that and that is how many decimal places your product has. In this case there is three.

You might be interested in

You want to find the mean weight of the apples in a barrel. what do you need to do?

Sveta_85 [38]

If you want to find the weight of the apples in the barrel first you have to ( FIND THE TOTAL WEIGHT OF ALL THE APPLES AND DIVIDE BY ALL THE NUMBER OF APPLES)

4 0

3 years ago

Write 2,670,000 in scientific notation.

hjlf

Scientific notation is just rewritten so that it has a single digit in front of the decimal and that this is multiplied by a power of ten that makes this decimal equal to the original number.

In this case we have 2.67 million. Well a million is equal to 10^6, because 10*10*10*10*10*10=one million.

So in scientific notation you would write:

2.67X10^6

5 0

3 years ago

What is the surface area? Please help. Thanks!

ValentinkaMS [17]

340.8 will be the answer i know how to do surface area of a pyramid but this one is a little confusing i followed the formula and all that but i think this is the right answer, sorry if it was wrong

7 0

3 years ago

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the

andrew-mc [135]

Answer:

Wheres the picture?

Step-by-step explanation:

4 0

3 years ago

7. Explain the difference between whole numbers and counting numbers.<br>(2 marks)<br>Your answer

Burka [1]

Counting numbers is like the numbers 1,2,3,4,5 and so on they were numbers you were probably taught to count to like to count through 1-10 or whatever. Counting numbers mean to count since they do have the word counting in them.

Whole number just means a number with no fraction or intger also 1 - infinity

3 0

3 years ago