Estimating with Decimals

The following numbers can be estimated by clustering to which value?

• 250

• 254.157

• 300

• 200

Estimate the sum by clustering.

 $18.78\ +\ 20.78\ +\ 19.99\ +\ 21.45$  

• 81

• 80

• 20

• 20.25

Round 9.5847 to the nearest hundredths.

• 9.6

• 9

• 9.58

• 9.585

Estimate the sum to the nearest tenths. (Round First)

 $7.462\ +\ 1.809$  

• 9.3

• 9.271

• 8

• 9

Round the following number to the nearest hundredths.

 $0.57948$  

Choose the compatible expression to estimate the result of this operation.

 $53.874\ \div\ 8.751$  

•  $53\ \div\ 8$  

•  $54\ \div\ 8$  

•  $54\div9$  

•  $6.15632$  

Estimate the result.

 $62.587\ \div\ 8.74$  

• 9

•  $62\div8$  

• 7

•  $63\div8$  

Front end estimation will always be _______ the true value.

• above

• below

Select the proper front - end estimation for 15.8457

• 15

• 15.87

• 15.9

• 16

Use front - end estimation to estimate the sum. 

 $34.84\ +\ 66.15$