Plus and Minus
4+15
19
4 x 5
20
1 + 2 x 3
7
Is 7 a prime number?
Yes
48+35
83
8 x 9
72
5 x 3 + 4 x 2
23
What is the opposite of a prime number?
Composite
32
9
12.5 + -3
9.5
12 x 3/4
9
Which is the only even prime number?
2
43
64
-5 - 3.4
-8.4
2.5 x 5
12.5
(25+23) divided by 8
No
33 - 24
-8
-3.5 - -14.2
10.7
-6 x -13
78
(42 + 2) divided by 6
3
How many prime numbers are there between 10 and 20?
4
34 - 23
73