Place Value, Rounding & Decimals

(a)  

Fill in the blank: 34.1 × 0.01 = 34.1 ÷ (a)  

Which of these problems have the same answer?

• 5300 × 0.01

• 530 × 0.1

• 53 ÷ 0.1

• 0.53 ÷ 0.01

4.9 ÷ 0.01 × 0.01 × 0.1 =

(a)  

Round 0.074095 to two significant figures.

(a)  

Round 884997 to three significant figures. Do not give spaces or comas in the answer.

(a)  

A number is rounded to 500 to one significant figure. What was the smallest the original number could have been?

• 400

• 450

• 499

If 36 000 has been rounded to the nearest thousand, how many significant figures does it have?

(a)  

If you round 3.17 to 3.2, you are

• rounding to three significant figures

• rounding to two significant figures

• rounding to one significant figures