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Addition War: The Ultimate Sum Showdown
Smart Worksheet Β· Grade 3 Β· English
Addition War: The Ultimate Sum Showdown
Smart Worksheet
Grade 3
English
Addition War: The Ultimate Sum Showdown
Addition War: Game Kit
Subject: Mathematics
Standard: CCSS.2.OA.B.2 β Fluently add and subtract within 20 using mental strategies.
This kit includes everything you need to play Addition War, a fast-paced game to build your math fluency! Follow the rules, use the reference sheet to help with tricky sums, and record your matches in the Game Log.
Name:
Date:
Addition War: Sum Showdown
π How to Play (Standard War)
1. Deal: Shuffle the cards and deal them equally to two players.
2. Flip: On the count of three, both players flip TWO cards from their pile.
3. Add: Find the sum of your two cards as fast as you can!
4. Win: The player with the higher sum wins all four cards.
5. War: If the sums are equal, it's a War! Each player flips two more cards to decide the winner.
β 3-Card Variant
Ready for a challenge?
Instead of flipping two cards, each player flips THREE cards. Add all three numbers together. The highest sum wins!
π Activity: Game Log
Play 5 rounds and record the math sentences below to see who becomes the Sum Master!
| Round | Player 1 Equation | P1 Sum | Player 2 Equation | P2 Sum |
|---|---|---|---|---|
| 1 | ___ + ___ = | ____ | ___ + ___ = | ____ |
| 2 | ___ + ___ = | ____ | ___ + ___ = | ____ |
| 3 | ___ + ___ = | ____ | ___ + ___ = | ____ |
| 4 | ___ + ___ = | ____ | ___ + ___ = | ____ |
| 5 | ___ + ___ = | ____ | ___ + ___ = | ____ |
π‘ Fact Quick-Reference Sheet
β¨ Doubles
1+1=2 | 2+2=4 | 3+3=6
4+4=8 | 5+5=10 | 6+6=12
7+7=14 | 8+8=16 | 9+9=18
4+4=8 | 5+5=10 | 6+6=12
7+7=14 | 8+8=16 | 9+9=18
π€ Friends of 10
1+9=10 | 2+8=10
3+7=10 | 4+6=10
5+5=10 | 0+10=10
3+7=10 | 4+6=10
5+5=10 | 0+10=10
π Strategies
Counting On: Start with the bigger number, count up the smaller.
Near Doubles: 5+6 is just (5+5)+1 = 11.
Near Doubles: 5+6 is just (5+5)+1 = 11.
βοΈ Printable Number Cards
Cut these out to create your deck! (Two sets provided)
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