Numeracy · Guided Practice

Rounding

22 questions with answers and video solutions. Try each one before revealing the answer.

1
How many significant figures does 208 have?
2
How many significant figures does 30082 have?
3
How many significant figures does 0.02 have?
4
How many significant figures does 0.000805 have?
5
How many significant figures does 125.50 have?
6
How many significant figures does 2040 have?
7
How many significant figures does 98.2 have?
8
How many significant figures does 450 have?
9
How many significant figures does 1.00023 have?
10
How many significant figures does 0.999 have?
11
How many significant figures does 9.99 have?
12
Round 208 to 2 significant figures.
13
Round 30082 to 3 significant figures.
14
Round 0.02 to 1 significant figure.
15
Round 0.000805 to 2 significant figures.
16
Round 125.50 to 2 significant figures.
17
Round 2040 to 2 significant figures.
18
Round 98.2 to 1 significant figure.
19
Round 450 to 1 significant figure.
20
Round 1.00023 to 3 significant figures.
21
Round 0.999 to 2 significant figures.
22
Round 9.99 to 2 significant figures.

Practice questions courtesy of Maths.scot. Full written solutions are on his site — the links above go straight to them.