Number bonds show the part-part-whole relationship between numbers. In 1st grade, number bonds are a stepping stone to addition and subtraction, and to the development of mental calculation skills. In this Pumpkin number bonds math worksheet, students solve number bonds to 20. A number line is provided at the top of the worksheet to help students solve each number bond. This math activity can be used for morning work, math centers, homework and homeschooling.
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