6th Grade Math Textbook, Progress

Estimate each quotient. Use compatible numbers.

10. 41.9
    8.6 11. 54.3
    9.3 12.47.17
    6.88


11. 358.8
    5.99 14. 225.741
    6.8 15.182.827
    3.5


12. 505.905
    52.7 17.798.238
    68.4 18. 328
    15.9


13. 885
    30.9 20.$63.28
    4.4 21.$596.78
    $9.50

Compare. Write,, 
, or..

22. 8
    9 1 23.27.6
    7.4 1 24.14.9
    8.7 1


23. 6.8
    18.9 1 26.1 0.7
    5.88 27.1 41.1
    0.999


24. 1 1.28
    3.01 29.1 12.1
    0.894 30. 1
    0.1 1

Three Ways to Estimate Quotients

Front End Compatible Numbers Rounding

35.5
3.6 35.5
3.6 35.5
3.6

30 
 3  10 40 
 4  10 36 
 4  9

Estimate each quotient to complete the table.

31.

32.

33.

34. Which method seems to give the most accurate estimate
    in each of exercises 31–33?

???

???

???

Compatible

Front End Rounding

Numbers

$225.50
15.8???

152.8
6.7???

60 
5.8???

35. The closest estimate of
    36.142
    8.95 is.

A 4 B0.4 C0.04 D0.004

?

36. The closest estimate of
    $464.36
    $9.25 is.

A0.5 B 5 C 50 D 500

?

8206-2_101 11/4/05 7:18 PM Page 101