UD5 Toolkit
Interactive Multiplication Chart – Online Highlight Patterns
Click cells to see patterns, highlight multiples. Visual way to learn multiplication. Print empty grid.
Multiplication Grid Challenge – Online Fill the Times Table
Multiplication Grid Challenge
Fill the Times Table – sharpen your mental math skills
Frequently Asked Questions
It's an interactive times table exercise where some cells of a multiplication grid are left blank. Your task is to fill in the missing products correctly, strengthening your multiplication facts through active recall.
Set the number of rows and columns (2–12), adjust the difficulty slider to control how many cells are hidden, then click "New Grid". Type the products into the empty boxes and press "Check Answers" to see your score.
The difficulty slider ranges from 10% to 90% hidden cells. A lower percentage means more cells are pre‑filled as hints (easier), while a higher percentage hides more cells for a tougher challenge.
Yes! Click the “Show Answers” button to reveal all missing products instantly. This is great for learning and self‑correction.
Currently it’s designed for interactive online use, but you can easily print the page from your browser. For best results, use the “Show Answers” function before printing to create a complete reference sheet.
Those are hints! They help you deduce the missing products and make the challenge more learning‑friendly. You can control the amount of hints with the difficulty slider.
Mental Math Trainer - Online Timed Arithmetic Drills
Practice mental arithmetic with customizable operators and digit count. Timed rounds, score tracking. Works offline. Improve your brain speed.
Random Math Problem Generator - Online Arithmetic Drill
Generate a sheet of random arithmetic problems (+, -, ×, ÷) with configurable digits. For kids and brain training.
Multiplication Flashcard Practice – Timed Math Drills
Practice times tables with interactive flashcards and a countdown timer. Choose specific numbers to drill, track your score, and improve mental math speed.
What Fruit Are You? Fun Personality Quiz – Online Cute Generator
Answer 5 silly questions and get a fruit personality result with a description. Harmless fun, local only.
Ham Radio Q‑Code Quiz – Online Test Your Knowledge
Randomly show a Q-code and select correct meaning. Learn while having fun. For your license exam.
Cloud Type Identifier & Quiz – Online Cirrus, Cumulus, Stratus
Learn to identify the 10 basic cloud types from photos. Self‑test quiz mode. Useful for pilots and hikers.
Logo Guessing Game - Online Identify Famous Brand Logos
See a cropped or simplified brand logo and guess the company. Hints available, score track. Local fun, no copyright infringement.
Country Silhouette Quiz - Online Identify Nation by its Outline
A country border shape appears, guess the nation. Multiple choice. Score tracking. Learn geography visually. Local SVG shapes.
Guess the Song from a Lyric - Online Music Trivia Game
A short lyric is shown, guess the song title. Score tracking. Multiple genres. Local database of snippets. No playback needed.
Emoji Movie Title Guessing Game - Online Decode Films from Pictures
Guess the movie title from a sequence of emojis. Hundreds of puzzles, score tracking. Pure frontend fun.
World Flag Quiz - Online Guess the Country by Flag
Identify countries from their flags. Multiple difficulty levels and regions. Track your high score. Educational geography game. Works offline.
IPv4 Subnetting Practice Quiz - Online CIDR & Netmask Drills
Practice calculating network ID, broadcast address, and usable IPs from a random IP/CIDR combination. Instant feedback and score tracking. Perfect for CCNA prep.
Binary‑Decimal Conversion Quiz - Online Speed Drills
Test how fast you can convert between binary and decimal. Timed drills with increasing difficulty. Learn base‑2 fluency.
Subnetting Practice Quiz - Online CIDR & IP Drills
Randomly generated subnetting questions. Calculate network address, broadcast, and usable range. For CCNA prep.
Image Slicer Tool - Online Cut into Equal Parts
Slice any image into a grid of smaller images. Download as individual files or a single sprite sheet. For games or posts.
ASL Alphabet Quiz - Online Fingerspelling Practice
Test your knowledge of American Sign Language letters. See a sign and type the letter. Improve receptive skills. Local.
Latin Square Generator - Online Balanced Grid
Create Latin squares for experimental design or tournament scheduling. Visual and copyable. No server required.
Text to Binary Grid - Online Visual Representation
Enter text and see each character's 8‑bit binary laid out in a black‑and‑white grid. Beautiful data art. Local.
Random Logic Puzzle Generator - Online Grid Problems
Generate a small logic puzzle grid (like Einstein’s riddle) with clues. Solve in browser or print. Local generation.
US States & Capitals Quiz - Online Geography Game
Test your knowledge: given a state name, pick its capital. Timed, with scoreboard. Learn all 50. No login.
Weekly Meal Prep Grid - Online Plan 7 Days
Fill in a 7‑day grid with breakfast, lunch, and dinner ideas. Print or screenshot. Stay organized.
Random Trivia Question - Online Quiz Yourself
Click for a random general knowledge question, then reveal the answer. Covers science, history, pop culture.
Country Outline Quiz - Online Identify by Shape
A silhouette of a country appears; type the name. Timed guesses. Great for geography buffs.
Grid Drawing Tool - Online Overlay on Photo for Copying
Overlay a grid on any image to help you draw it freehand. Adjust grid size and line thickness. Useful for artists.
Capital Cities Quiz - Online World Geography Trivia
Test your knowledge of world capitals. Multiple choice, timed rounds. Improve your geography skills. No data collection.
World Flag Quiz - Online Guess the Country by Flag
Random world flags shown; pick the correct country name from four choices. Score and streak. Learn geography.
NATO Phonetic Alphabet Quiz - Online Learn Alpha Bravo
Test your knowledge of the NATO phonetic alphabet. Timed quiz with letter‑to‑code and code‑to‑letter modes.
ASL Fingerspelling Practice - Online Random Words Quiz
Shows a random short word and displays animated ASL fingerspelling letters. Type what you see. Improve receptive skills.
Impossible Quiz - Online Tricky Question Challenge
Answer a series of deliberately confusing and trick questions. Lives system and funny wrong answers. Playful, no data stored.