Rounding
Sig Figs?
Calculate!
Convert to Standard form
Decimals
100
Keep the last significant figure digit the same and do not round up if the number after is...
What is less than five?
100

How many sig fig? 172

What is 3?

100

4.53 x 1000

What is 4530?

100
172
What is 1.72 x 10^2?
100

3.69 x 10^-2 as a decimal number

What is 0.0369?

200
Round the last significant figure digit up if the number after is...
What is greater than five?
200

Round to 2 sig fig : 107.2

What is 110?

200

(2.34 divided by 1000

What is 0.00234?

200
0.502
What is 5.02 x 10^-1?
200

1.56 x 10^4

What is 15600?

300

Round 345.765 to 2 decimal places

What is 345.77?

300

Round to 1 sig fig 0.502

What is 0.5?

300

(2.130 x 10^2

What is 213?

300
123,453
What is 1.23453 x 10^5?
300

What is 0.00259 to 3 decimal places

What is 0.003?

400
Round 77.0653 to three significant figures.
What is 77.1?
400

How many sig fig is 0.982 x 10^-3

What is 3?

400

(3.5 x 10^2) + (6.45 x 10^3) in standard form

What is 6.8 x 10^3?

400
0.982 x 10^-3
What is 9.82 x 10^-4?
400

What is 736.9 x 10^5

What is 73690000?

500
Round 0.00023350 to 3 significant figures.
What is 0.000234?
500

How many sig fig is the answer to 3100.0 x 10^2

What is 5?

500

What is (4.4 x 10^-2) - (2.25 x 10^-3) in standard form

What is 4.175 x 10^-2?

500
3100.0 x 10^2
What is 3.1000 x 10^5?
500

0.000459 x 10^-1. How many decimal places

What is 0.0000459?

7

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