lesson
Updated 1 month ago · 6 views
Imagine you have 3 gift bags, and every single bag is packed with 14 stickers.
How do we find 3×14 without counting all 42 stickers one by one?
Break It Apart
To make big numbers easy, we partition them, which means splitting a number into tens and ones.
The number 14 splits neatly into 10 and 4.
📊Interactive diagram
How do we use these two friendly parts to multiply by 3?
The Grid Method
The grid method uses a simple box to multiply the tens and ones separately before adding them up.
📊Interactive diagram
First, multiply the single digit by the tens: 3×10=30.
Next, multiply the single digit by the ones: 3×4=12.
Finally, add the two partial answers together: 30+12=42.