Examples
Sandwiched zeros
Zeros
Non-zeros
Bonus
100

The number of sig figs in the sum of a substance with a mass of 39g and a substance with a mass of 127g

What is 3

100

The rule of sig figs for sandwiched zeros.

What is they are significant.

100

The rule of sig figs for zeros.

What is they are not significant unless sandwiched by integers or after a number after a decimal.

100

The rule of sig figs for non-zeros.

What is they are always significant.

100

Invented significant figures.

What is Silas Whitcomb Holman.

200

The molarity of a solution made with 84.1g lithium sulfate and 1.50L water with the correct sig figs.

What is 0.510 M Li2SO4

200

The answer of 20*51 in correct sig figs.

(Answer 1020) What is 1000.

200

The significance of the second zero in 0.064

What is not significant 

200

The number of sig figs in the number 20,995,631,000,840

What is 10

200

The rule of sig figs when there are two or more numbers with a different amount of sig figs. 

What is default to the lowest number

300

The amount of sodium chloride needed to make 0.25 M solution

(Answer 14.625) What is 15g NACL

300

101 upside down

What is LOL

300

The number of sig figs in the number 0.00023040

What is 5

300

You go to the grocery store and buy 6 packs of oatmeal cream pies each $5.40, and 7 apples each $2.75. The total in correct sig figs.

(Answer $51.65) What is $50

300

Significant figures refers to..

What is each of the digits of a number that is used to express it to the specified degree of accuracy

400

The following numbers rounded to 3 sig figs:

1. 234,555,359 

2. 0.090035

3. 11.1111

What is 234,000,000 , 0.0900 ,and 11.1

400

All the possible integers that can sandwhich a zero

What is integers 1-9

400

The number of sig figs in the number 5,000.

What is 4

400

The reason the molarity of 150g potassium fluoride in 1000ml water equals 3M KF

What is the rule that the sig figs default to the lowest number in the problem. In this case 1000ml only has one sig fig, so the answer will only have one sig fig.

400

An example of the importantance of significant figures

What is a grade of 92.49 that would be a B rather than an A if not correctly rounded 

500

Solve using the correct sig figs: 1.40 x 103 / 57 x 7.368 + 45001 - 56.355 - 78.44

(Answer 44884.84475) What is 44000

500

The explanation as to why the first zero in 2070 is significant, but the second is not

What is the first zero is part of the number 207, and would still be included if the answer was 205 or 206. The second zero is not significant because it would not change the preciseness of number, for example 2070 and 2060.

500

Zeros that are never significant 

What is leading zeros 

500

The amount of aluminum nitrate needed to make a 1.0 M solution in the correct sig figs

What is 210g Ag(NO3)3 in 1 liter water 

500

Your test score when you do not use correct sig figs

What is 13%

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