Name ____________________
Time: ________
Date ___ / ___ / ___
Score ________
Reciprocal (Number Dojo Level 79)
Middle School Worksheet Set D
Instructions: Give yourself 5 minutes to complete as many problems as you can. Score this worksheet like a
Number Sense test, giving yourself 5 points for every correct answer, less 4 points for every skipped or incorrect
answer. High score is a 200.
1)
The multiplicative inverse of -11 is _____
21)
The reciprocal of 0.9 is ______ (mixed #)
2)
The multiplicative inverse of 1.8 is _____
22)
The multiplicative inverse of 2.5 is _____
3)
The reciprocal of 3 1/5 is ______
The reciprocal of 4 2/3 is ______
The reciprocal of -18 is ________
The multiplicative inverse of 5 4/7 is ____
The reciprocal of -6 is _________
The reciprocal of 3/5 is ______ (mixed #)
The reciprocal of 1.4 is ______ (fraction)
1 = 7/13 x __________ (mixed #)
The multiplicative inverse of 5.2 is _____
The reciprocal of 0.4 is ______ (mixed #)
1 = 11/17 x _________ (mixed #)
The reciprocal of 2.75 is ______ (fraction)
1 = 11/5 x __________ (fraction)
The reciprocal of 2/7 is ______ (decimal)
The reciprocal of 0.3 is ______ (mixed #)
The reciprocal of 5/11 is _____ (mixed #)
The reciprocal of 7/12 is _____ (mixed #)
The multiplicative inverse of 4.2 is _____
23)
The multiplicative inverse of -0.25 is ____
24)
The multiplicative inverse of 2.0625 is ___
25)
The multiplicative inverse of -1.111… is __
26)
The multiplicative inverse of -2 ¾ is _____
27)
The multiplicative inverse of 5 6/7 is ____
28)
The multiplicative inverse of 3.4 is _____
29)
The multiplicative inverse of 2.2 is _____
30)
The multiplicative inverse of -1 5/7 is ____
31)
The multiplicative inverse of 1.2 is _____
32)
The multiplicative inverse of 1.8333… is __
33)
If 1.111… x k = 1, then k = _____
The multiplicative inverse of -1.25 is ____
The multiplicative inverse of 1.333… is ___
The multiplicative inverse of -2.2 is _____
The multiplicative inverse of 7/6 is _____
The reciprocal of -1.3 is _______
The multiplicative inverse of 7 is ___
The multiplicative inverse of 0.444… is ___
4)
5)
6)
7)
8)
9)
10)
11)
12)
13)
14)
15)
16)
17)
18)
19)
20)
34)
35)
36)
37)
38)
39)
40)
- - - - - - - - - - - - - - - Fold the bottom portion under - - - - - - - - - - - - - - Answer Key
1)
2)
3)
4)
5)
6)
7)
8)
-1/11
5/9
5/16
3/14
-1/18
7/39
-1/6
1 2/3
9)
10)
11)
12)
13)
14)
15)
16)
5/7
1 6/7
5/26
2½
1 6/11
4/11
5/11
3.5
17)
18)
19)
20)
21)
22)
23)
24)
3 1/3
2 1/5
1 5/7
5/21
1 1/9
.4 or 2/5
-4
16/33
25)
26)
27)
28)
29)
30)
31)
32)
-.9 or -9/10
-4/11
7/41
5/17
5/11
-7/12
5/6
6/11
© 2016 by Number Dojo, www.NumberDojo.com
33)
34)
35)
36)
37)
38)
39)
40)
.9 or 9/10
-.8 or -4/5
.75 or ¾
-5/11
6/7
-10/13
1/7
2.25 or 9/4