These Valentine addition mats from Kinder Lake are perfect for practicing putting together, altogether, or addition.
Students put the first number in the left broken heart or cupcake, the second number in the right broken heart or cupcake, and then say addition or the plus sign means to bring together. Have students move the objects into the full heart or the cupcake stand for the sum.
You can laminate or put these in pouches for continued use. Have students write the number sentence and move the manipulatives to show the addition sentence. For center time have students roll dice to make new addition sentences.