Significant Figures and Estimation flashcards
10 practice cards drawn from the Significant Figures and Estimation lessons. Tap a card to turn it over. Every answer is checked against the lesson it came from.
Read the Significant Figures and Estimation lessons in full →
Round 0.026 to one significant figure
0.03
from “Significant Figures”
How many significant figures does 0.0085 have?
2
from “Significant Figures”
A mass is 11 kg to the nearest kg. Which value could it not be?
11.5
from “Bounds and Error Intervals”
Rods measure 9 cm and 4 cm, each to the nearest cm. Largest possible total?
14
from “Bounds and Error Intervals”
a = 15 and b = 9, each to the nearest whole number. What is the upper bound of a − b?
7
from “Propagating Upper and Lower Bounds”
A rectangle measures 9 cm by 8 cm, each to the nearest cm. What is the upper bound of its area, in cm²?
80.75
from “Propagating Upper and Lower Bounds”
A length is exactly 400 mm and the measurement reads 480 mm. What is the percentage error?
20.0%
from “Percentage Error”
Two scales are each 5 g out. One weighs 50 g, the other 500 g. Which has the larger percentage error?
the one weighing 50 g
from “Percentage Error”
Roughly, 2.3 × 33 is…
60
from “Estimating with One Significant Figure”
Roughly, 3.2 × 89 is…
270
from “Estimating with One Significant Figure”