Mathematics for IGCSE & O level - Estimation (Section 4)
1
If a value in a calculation is given to the nearest tenth, the answer can not be more than?
2
Which of the following is the best strategy for estimating the answer to a multiplication problem?
Répondre(B)
Round all numbers to 1 significant figure and then multiply.
3
Which digit is considered to determine how to round to 1 s.f.?
4
What is 0.067 rounded to 1 s.f.?
5
What is the value of 0.005459 rounded to 3 significant figures?
6
What is 0.127 rounded to 1 s.f.?
7
How many significant figures are in the number 0.00560?
8
Which digit do you look at to find the value of the decimal places?
9
What is the approximate area of a rectangle with a length of 7.8 cm and a width of 4.2 cm (rounded to 1 s.f.)?
10
What is 0.00546 to 2 significant figures?
11
What is 0.00367 rounded to 2 s.f.?
