A set of dominoes to use in the classroom when learning combinations of 10.
Use this teaching resource as a math center activity to help students identify the different number combinations that make ten.
Print out the dominoes on cardstock for added durability and store them in a resealable bag.
Individually, or in small groups, students connect the dominoes by matching two numbers that make ten, e.g., 2 & 8, 6 & 4.
For any number from 1 to 9, find the number that makes 10 when added to the given number, e.g., by using objects or drawings, and record the answer with a drawing or equation.
Add and subtract within 20, demonstrating fluency for addition and subtraction within 10. Use strategies such as counting on; making ten (e.g., 8 + 6 = 8 + 2 + 4 = 10 + 4 = 14); decomposing a number leading to a ten (e.g., 13 - 4 = 13 - 3 - 1 = 10 - ...
Fluently add and subtract within 20 using mental strategies. By end of Grade 2, know from memory all sums of two one-digit numbers.
Explain the strategies used to solve problems involving adding and subtracting within 10 using spoken words, concrete and pictorial models, and number sentences.
Compose 10 with two or more addends with and without concrete objects;
Apply basic fact strategies to add and subtract within 20, including making 10 and decomposing a number leading to a 10;
Recall basic facts to add and subtract within 20 with automaticity;
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