Year 9 - Rounding, Significant figures, Standard form

 $2.8\div7=$  

•  $0.4$  

•  $4$  

•  $40$  

•  $0.04$  

 $23\div0.001=$  

•  $0.23$  

•  $23\ 000$  

•  $0.023$  

•  $2300$  

 $24\div0.04=$  

•  $0.6$  

•  $0.06$  

•  $600$  

•  $60$  

 $0.6\times1.2=$  

• 2

• 7.2

• 72

• 0.72

 $1.21\times0.3=$  

•  $0.363$  

•  $3.63$  

•  $36.3$  

•  $363$  

What is 78.5 rounded to one significant figure?

• 79

• 78.5

• 70

• 80

Tags

CCSS.5.NBT.A.4

Round off 1,296,717 to 3 significant figures

• 1,290,000

• 1,296,000

• 1,297,000

• 1,300,000

Round off 509.96 to 4 significant figures

• 509.9

• 509.0

• 510.0

• 510

What is 0.658 rounded to 1 significant figure?

• 0

• 0.66

• 0.7

• 0.658

Tags

CCSS.7.EE.B.3

Round 0.010229 to four significant figures

• 1022

• 1023

• 0.01023

• 0.01022