Use the Box Method to multiply place-value energy blocks and power up 20 incredible city buildings!
Sharpen your box multiplication skills with infinite practice problems!
Fill as many partial products as you can before the clock runs out. Build huge streaks to trigger 2x, 3x, and 4x multiplier scores!
Enter any two numbers to generate a custom interactive Area Model grid!
Multiplying big numbers like 35 × 24 sounds tricky in your head, but it's super easy when you break numbers apart into Tens and Ones! Imagine drawing a house blueprint with rooms: each room multiplies a simple top number by a side number.
Split each number by place value:
Write 30 and 5 on top, and 20 and 4 on the left side!
Multiply each row by its column to find the partial product in each room:
Stack and add all four room answers together:
Therefore: 35 × 24 = 840! 🎉
Earn badges by building city landmarks, scoring streaks, and mastering partial products!