Missing Number Calculator vs Read Text & PDF

Instantly solve missing number math puzzles! Find the value of the blank with this intuitive calculator app. Missing Number Calculator lets you solve equations with a missing value. Enter a math expression with a blank, and the app finds the answer instantly. Perfect for learning, practice, or fun!

Turn long-form reading into easy listening. Read aloud typed or pasted text, PDFs, TXT and RTF files, and text recognized from photos. Adjust the speaking speed, pitch, volume, and sentence interval to create a comfortable listening experience for studying, work, proofreading, or listening on the go. ■ Key Features • Read typed and pasted text aloud • Import PDF, TXT, and RTF files • Recognize text from photos • Adjust speed, pitch, volume, and sentence intervals • Follow the current sentence with automatic scrolling • Continue listening in the background • Save, search, and resume documents • Export audio in M4A or WAV format • Create captioned videos in 9:16 or 16:9 format • Choose from 19 voice effects • Skip URLs, email addresses, Markdown symbols, and other unwanted content ■ Voice Changer Apply effects such as megaphone, robot, echo, monster, telephone, radio, helium, and more. Processed voices can be used during playback and included in exported audio files and captioned videos.