Captcha + 9 = 10

Captcha 60 − = 56

Captcha − 3 = 4

Captcha 89 − 85 =

Captcha 45 − = 35

Captcha − 1 = 8

Captcha 80 + = 90

Captcha 61 − 58 =

Captcha 23 − 13 =

Captcha + 34 = 40