This is a Memory game to help students understand making ten as a mental math strategy. Each page has 8 cards - one page has 6 (a total of 22 cards). You will need to cut out the cards along the black lines. Each card has either a making 10 addition sentence or a missing addend. There is a matched missing addend for every addition sentence. Sums are color-coded for odd and even numbers (blue = even and red = odd).
Directions for Play:
First, shuffle the cards and lay them face down on the table.
Students will take turns playing. The player whose last name comes first in the alphabet may start and then play will move to the right.
When it is your turn, turn over two cards. If you have a matching number sentence and missing addend (ex. 2+_=10 and 8), you will keep the pair. If you do not have a number sentence and missing addend, play moves on to the next player.
The player who has the greatest number of matching number sentence and missing addend pairs will win!
Common Core Alignment:
Math – 1.OA.3 – Understand and apply properties of operations and the relationship between addition and subtraction.
Math – 1.OA.4 – Understand and apply properties of operations and the relationship between addition and subtraction.
Math-1.OA.6 - Add and subtract within 20.
Math – 1.NBT.4 – Use place value understanding and properties of operations to add and subtract.
Math-2.OA.2 - Fluently add and subtract within 20 using mental strategies.
Math – 2.OA.3 – Work with equal groups of objects to gain foundations for multiplication
Math – 2.NBT.5 – Use place value understanding and properties of operations to add and subtract.
Math – 3.NBT.2 – Use place value understanding and properties of operations to perform multi-digit arithmetic.