Significant figures and estimating Quiz
10 questions · easy to harder · Foundations · score and step-by-step answers
How it works
- 10 questions, about 20 minutes (a timer counts down; you can hide it). Solve it right here: no sign-up.
- 5 questions have choices. For the others you type the answer: a number like 4, −2, 7/2 or 3.5, or for example x = 4, x = 2 or x = −3, (3, 5), 2x + 1. Use ^ for powers (x^2) and sqrt for √. Any form with the same value counts (7/2 = 3.5).
- One question at a time: Back, Next, Mark for review and the question list at the bottom. No calculator: work it out on paper.
- At the end: your percent and grade, every question right or wrong, why a wrong choice is wrong, and its step-by-step solution. Then practise the lesson with new questions.
Your answers and results are kept in this browser only, so you can close the page and come back.
1 Question 1
Round 5764 to 2 significant figures- A) 5764
- B) 6
- C) 58
- D) 5800
2 Question 2
Round 4619 to 1 significant figureType the answer.
3 Question 3
Round 6.48 to 2 significant figures- A) 6.5
- B) 65
- C) 0.65
- D) 8
4 Question 4
Round 715 to 2 significant figuresType the answer.
5 Question 5
Round 0.0372 to 1 significant figure- A) 7
- B) 0.04
- C) 4
- D) 0.4
6 Question 6
Round 12.65 to 3 significant figuresType the answer.
7 Question 7
Round 254.7 to 2 significant figures- A) 4
- B) 254.7
- C) 25
- D) 250
8 Question 8
Estimate 41.3 × 9.79 ÷ 0.765Type the answer.
9 Question 9
Estimate 587 ÷ 2.9- A) 20
- B) 200
- C) 2000
10 Question 10
Estimate 0.48 × 812Type the answer.