Which ever number has the least significant figures is the amount you use.
For example:
4.123/2.2=1.874 But the correct answer with significant figures is 1.9
Look at the numbers you are multiplying and dividing. Your answer should have the amount of sig figs that the smallest number has. Rules are as followed: .00236 Has three sig figs. The zeros are used for "spacing". (.00200 also has three sig figs.) .236 Has three sig figs. 100 Has one sig fig. 100. Has three sig figs due to the decimal point. 1.00 Has three sig figs. The rules are confusing, but with practice, you should be able to understand them without a problem. I'm sure I have also forgotten to add one or two.
there are 3 sig figs. 4, 0, and 5 are the sig figs
5 sig figs
6.002 has four sig figs.
There are five sig figs in 4.1275.
Look at the numbers you are multiplying and dividing. Your answer should have the amount of sig figs that the smallest number has. Rules are as followed: .00236 Has three sig figs. The zeros are used for "spacing". (.00200 also has three sig figs.) .236 Has three sig figs. 100 Has one sig fig. 100. Has three sig figs due to the decimal point. 1.00 Has three sig figs. The rules are confusing, but with practice, you should be able to understand them without a problem. I'm sure I have also forgotten to add one or two.
two sig figs
there are 3 sig figs. 4, 0, and 5 are the sig figs
5 sig figs
When adding or subtracting, follow these steps to find a sig figs answer: 1) Add/Subtract numbers regularly. 2) Determine which measurement has the least decimal places. 3) Round final answer to the same number of decimal places. When multiplying or dividing, follow these: 1) Count the number of sig figs in the numbers you are multiplying/dividing. 2) Multiply/Divide regularly. 3) Round final answer to the same number of sig figs as the measurement with the fewest sig figs.
13.00 has 4 sig figs.
61 has 2 sig figs.
There are five sig figs
There are four sig figs in 2.905.
There are three sig figs in 1.05.
There are three sig figs in 4890.
All five of them are sig figs