Description
How it works
Put one card face up in the middle to set the fixed factor. Players split the rest, flip simultaneously, and each multiplies their card by the middle factor. Both say the full multiplication sentence and agree whether the products are right. Greater product takes both cards; a tie means war. Most cards wins. Holding one factor constant is what makes this so useful — a single game gives a child dozens of reps on exactly the fact set they need, and you change it by swapping one card.
What you’ll need
- A deck with kings and jacks removed (ace = 1, queen = 0)
Skills practiced
One targeted multiplication fact set, comparing products, and explaining strategies like halving and doubling.
Grade level
2nd through 5th grade. Play Fixed Addend War with the same rules for addition, or have children record their equations for accountability.
Instant PDF download. Game instructions adapted from the ideas in Math Fact Fluency by Jennifer Bay-Williams and Gina Kling (ASCD / NCTM, 2019).
