Captcha 20 − 15 =

Captcha 44 − = 36

Captcha − 2 = 6

Captcha − 3 = 4

Captcha + 21 = 24

Captcha 40 + = 46

Captcha + 35 = 43

Captcha + 49 = 51

Captcha 93 − 83 =

Captcha 42 + = 47