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WorksheetsChapter 3 Mastering Significant Figures and Estimation
Total questions: 35
Worksheet time: 18mins
What is 4.678 rounded to two significant figures?
4.6
4.8
5.0
4.7
Estimate the length of a pencil in centimeters.
15 centimeters
19 centimeters
30 centimeters
25 centimeters
How many significant figures are in the number 0.00456?
3
5
2
4
If a recipe calls for 2.5 cups of flour, how would you round this to the nearest whole number?
2
3
2.0
4
Estimate the weight of a textbook in kilograms.
3 kg
0.5 kg
2 kg
1.5 kg
How many significant figures are in the measurement 1500 m?
2
1
4
3
If you measure a table and find it to be 1.23 m, how would you express this with two significant figures?
1.20 m
1.23 m
1.3 m
1.2 m
What is the estimated time it takes to walk 1 mile in minutes?
5 to 10 minutes
10 to 15 minutes
15 to 20 minutes
30 to 35 minutes
If a scientist measures a liquid and records it as 3.00 mL, how many significant figures are present?
4
5
3
2
Round the number 0.00789 to three significant figures.
0.0079
0.00790
0.00788
0.00800
Estimate the height of a classroom in meters.
4.2 meters
3.5 meters
1.8 meters
2.7 meters
If you have the number 123.456 and you want to round it to one decimal place, what is the result?
123.4
123.5
124.0
123.0
How many significant figures should be used when reporting the result of 0.00340?
4 significant figures
5 significant figures
3 significant figures
2 significant figures
If a car travels 150.5 miles, how would you round this to the nearest ten miles?
160
155
170
150
Estimate the number of students in a school with 450 students.
500
600
400
450
If you measure a piece of wood and find it to be 2.5 cm, how would you express this with one significant figure?
2.0 cm
2 cm
3 cm
4 cm
What is the result of adding 2.34 and 1.2, considering significant figures?
3.5
3.4
4.0
2.5
Estimate the time it takes to bake a cake in hours.
2 to 3 hours
5 hours
1 to 1.5 hours
30 minutes
If a scientist records a temperature of 25.0°C, how many significant figures are in this measurement?
3
4
5
2
Round the number 987.654 to four significant figures.
987.65
988
987.6
987.7
Round the number 0.05678 to two significant figures.
0.06
0.06
0.05
0.057
How many significant figures are in the number 0.1200?
3
4
2
5
If you measure a length and find it to be 5.678 m, how would you express this with three significant figures?
5.68 m
5.7 m
5.6 m
5.67 m
If a scientist measures a solid and records it as 12.30 g, how many significant figures are present?
4
3
5
2
Estimate the width of a door in centimeters.
80 centimeters
100 centimeters
90 centimeters
70 centimeters
If you have the number 456.789 and you want to round it to two decimal places, what is the result?
456.79
456.8
457.0
456.7
Estimate the weight of a laptop in kilograms.
2 kg
1 kg
3 kg
4 kg
If you have the number 0.00456 and you want to round it to two significant figures, what is the result?
0.0046
0.0045
0.0050
0.0040
How many significant figures are in the measurement 0.05060?
4
3
5
2
Estimate the height of a standard door in centimeters.
200 centimeters
180 centimeters
150 centimeters
170 centimeters
Round the number 3.14159 to three significant figures.
3.14
3.142
3.15
3.1
If a person walks 2.5 kilometers, how would you round this to the nearest kilometer?
3 km
2 km
2.5 km
4 km
Estimate the number of pages in a book that has approximately 300 pages.
250
300
350
400
If you measure a piece of fabric and find it to be 1.75 m, how would you express this with two significant figures?
1.8 m
1.7 m
1.75 m
2 m
What is the estimated time it takes to run 5 kilometers in minutes?
20 to 30 minutes
30 to 40 minutes
40 to 50 minutes
10 to 20 minutes
