Download Prime (Number Dojo Level 71) Middle School Worksheet Set C

Name ____________________
Time: ________
Date ___ / ___ / ___
Score ________
Prime (Number Dojo Level 71)
Middle School Worksheet Set C
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 largest prime number < 40 = ______
21) The product of the primes between 0 & 10 =
2)
The sum of the 1st 4 prime numbers = ___
22)
3)
The largest prime number < 28 = ______
23)
4)
The smallest prime number > 40 = _____
24)
5)
How many primes are < 12? ___
The smallest prime number > 14 = _____
The largest prime number < 35 = ______
The smallest prime number > 19 = _____
The sum of the 1st 5 prime numbers = ___
The smallest prime number > 50 = _____
The smallest prime number > 31 = _____
Which is prime, 57 or 41? _____
(1st composite #) – (1st prime #) = ___
The sum of the 1st 3 prime numbers = ___
How many primes are between 2 & 15? ____
Which is prime, 151 or 153? ___
The largest prime number < 29 = ______
The sum of the 1st 6 prime numbers = ___
The smallest prime number = __
The sum of the primes between 40 & 50 = ___
25)
6)
7)
8)
9)
10)
11)
12)
13)
14)
15)
16)
17)
18)
19)
20)
26)
27)
28)
29)
30)
31)
32)
33)
34)
35)
36)
37)
38)
39)
40)
_
How many primes are < 25? ___
There are _____ composite numbers < 11.
__ composite numbers are between 14 & 20.
How many primes are between 14 & 24? ___
The mean of the smallest 4 primes is ____
__ composite numbers are between 16 & 25.
How many primes are between 30 & 50? ___
The product of the primes between 10 & 15 = _
The greatest prime number < 119 = ____
The sum of the primes ≤ 13 = _____
The sum of the 1st 4 odd primes = ______
The greatest prime number < 99 = _____
How many primes are between 40 & 50? ___
The product of the primes < 10 = ___
The sum of the prime numbers < 10 = ___
The product of the 1st 3 prime numbers = ___
The sum of the primes between 10 & 20 = ___
The sum of the prime integers < 7 = ____
The sum of the 1st 4 composite numbers = __
- - - - - - - - - - - - - - - Fold the bottom portion under - - - - - - - - - - - - - - Answer Key
1)
2)
3)
4)
5)
6)
7)
8)
37
17
23
41
5
17
31
23
9)
10)
11)
12)
13)
14)
15)
16)
28
53
37
41
2
10
5
151
17)
18)
19)
20)
21)
22)
23)
24)
23
58
2
131
210
9
5
3
25)
26)
27)
28)
29)
30)
31)
32)
3
4 ¼ or 17/4
5
5
143
113
41
26
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33)
34)
35)
36)
37)
38)
39)
40)
97
3
210
17
30
60
10
27