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Sample - Click above to make a new math worksheet (PDF).
Name _____________________________
Date ___________________
Decimals
Compare. Write <, >, or =.
1.  
8.410  _______  8.41
2.  
7.134976  _______  7.134369
3.  
0.194  _______  0.666
4.  
3.90  _______  3.69
5.  
5.40  _______  5.510
6.  
1.9586  _______  1.9586
7.  
6.00120  _______  6.00060
8.   * This is a pre-made sheet.
Use the link at the top of the page for a printable page.

Compare. Write <, >, or =.
9.  
-3.279242  _______  -3.206594
10.  
4.218  _______  -4.182
11.  
-8.36540  _______  -8.35460
12.  
-5.00030  _______  -5.006
13.  
-0.10  _______  -0.150
14.  
-11.790  _______  -11.60
15.  
-9.200  _______  -9.200
16.  
6.342  _______  -6.3420

Order the decimals from least to greatest.
17.   54.74, 54.30, 54.78
18.   32.52, 32.0052, 32.052, 32.000052, 32.00052
19.   45.009064, 45.9064, 45.000964, 45.90064, 45.09064
20.   68.365, 68.371, 68.267

Order the decimals from least to greatest.
21.   -9.414, -9.4, -9.8, -9.81
22.   -76.0603, -76.6003, -76.603, -76.00063, -76.00603
23.   -46.368, -46.788, -46.994
24.   63.22, 63.022, 63.0022

Add or subtract.
25.   30.81  +  28.816
26.   27.00402  -  5.054
27.   17.1  -  3
28.   14.35  +  17.93

 

Key #2
aKey #2
Rewrite the number in scientific notation.
29.   0.000000002
30.   313,000
31.   0.00000000084
32.   510,000,000
33.   34,800,000
34.   0.000000323
35.   80,000
36.   0.00000000000981

Rewrite the number in decimal notation.
37.   4 x 1012
38.   2.96 x 10-9
39.   4.7 x 107
40.   6.97 x 10-4
41.   6.7 x 105
42.   8.71 x 10-11
43.   7.89 x 10-8
44.   9.1 x 1011

Solve for the unknown.
45.   5.563 = 23.563  -  v
46.   36.2 = g  +  21.2
47.   e  -  23.07299 = 2.9273172
48.   30.28  -  d = 7.51

Multiply. Round answers to the nearest thousandths.
49.   8.9882  x  6.4560
50.   1.012
51.   6.6381  x  12.56
52.   3.74  x  5.60
53.   9.983  x  10.8534
54.   10.000044  x  2.004

Complete.
55.   Hunter bought a very large star map for his bedroom wall. The map is round. Its radius is four feet. What is the circumference and area of the wall map?

56.   David bought some parts to repair his saxophone. He needed a new ligature (the part that clamps the reed to the mouthpiece). He found several different kinds in some catalogs. He decided to buy one of each since they were not that expensive and he wanted to see which one he liked the best. He got one for $14.33, one for $8.57, and one for $5.09. The total shipping cost for all three was $8 and the sales tax on everything he purchased, including shipping, was 5.6%. How much did he spend?


 

Key #2
aKey #2
Divide.
57.   6.1  ÷  4
58.   10.2645  ÷  2
59.   5.98  ÷  4
60.   3.000483  ÷  9
61.   7.514  ÷  4
62.   8.9  ÷  5

Divide.
63.   39.425  ÷  10.375
64.   116.25  ÷  9.3
65.   59.25  ÷  7.5
66.   20.21  ÷  4.3
67.   29.92803  ÷  3.3627
68.   23.94  ÷  11.4

Complete.
69.  
 -6.8  -  27  ×  -16.9
70.  
 -77.6  ÷  -4
71.  
 -12.9  +  2.7  ×  26  +  -40  -  10
72.  
 2.4  -   ( 17.6  +  13  -  16.4 
73.  
 95.2  ÷  11.9
74.  
 -24  +  8.7  ×  15  +  7.5  -  22

Solve.
75.   12.8y = 92.16
76.   4.1h = 10.66
77.   2.1 = q  ÷  3.79
78.   6p = 59.94
79.   2.25 = g  ÷  2
80.   11.2 = r  ÷  10.5
81.   2.55 = a  ÷  5
82.   6.5m = 60.32
83.   70.56 = 11.2w
84.   39.38 = 5.5v
85.   c  ÷  6 = 1.46
86.   y  ÷  10.2 = 4.4

Complete.
87.   Chemistry Dude has made a new compound called slubbur III. Slubbur III has a melting point of 864.1C while its predecessors slubbur I and II had melting points of 895.7C and 896.3C, respectively. By how much is the melting point of slubbur II different from that of slubbur III?

88.   A sample of blood is collected from a patient. The pH of the blood is found to be 6.85. The same patient is tested the next day and their blood pH is then 6.52. What was the difference between the two blood pH measurements?


 

Key #2
aKey #2
Complete.
89.   If the ratio of pyramidal nanoparticles to cubic nanoparticles is 11 to 7, how many cubic nanoparticles will there be in a population of 5.45 x 106 nanoparticles?

90.   Kaitlyn has measured some yeast cells she isolated from the surface of grapes. The cells she measured were 10, 25, 21, 16, and 10 micrometers in length. What was their average length in meters? Express your answer using scientific notation.


Rewrite the number in scientific notation.
91.   760,000,000,000
92.   8,100,000,000
93.   0.00000000000549
94.   0.00000892
95.   0.0000000772
96.   500,000,000
97.   0.000036
98.   0.0006

Multiply. Round answers to the nearest thousandths.
99.   4.60  x  5.13
100.   11.7496  x  5.1952
101.   0.974  x  14
102.   3.3436  x  3.675
103.   1.00052  x  1.08
104.   2.002  x  2.0038

Complete.
105.  
Write three decimals greater than   
7

10
and less than 1.





106.   Which is easier, converting 0.8 to a fraction or converting three-fourths to a decimal?






 


Answer Key


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Create a new printable
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Middle School Math
Math Worksheets