Captcha 89 − = 87

Captcha 29 − = 27

Captcha 90 − = 82

Captcha − 6 = 3

Captcha + 6 = 11

Captcha 38 + = 45

Captcha + 3 = 5

Captcha − 6 = 1

Captcha 64 + = 72

Captcha 41 + = 44