Missing Numbers (A) WORKSHEET
Suitable for Grades: 1st Grade
CCSS: 1.OA.C.6, 1.OA.D.7
CCSS Description: 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 – 1 = 9); using the relationship between addition and subtraction (e.g., knowing that 8 + 4 = 12, one knows 12 – 8 = 4); and creating equivalent but easier or known sums (e.g., adding 6 + 7 by creating the known equivalent 6 + 6 + 1 = 12 + 1 = 13).
Understand the meaning of the equal sign, and determine if equations involving addition and subtraction are true or false. For example, which of the following equations are true and which are false? 6 = 6, 7 = 8 – 1, 5 + 2 = 2 + 5, 4 + 1 = 5 + 2.
Understand the meaning of the equal sign, and determine if equations involving addition and subtraction are true or false. For example, which of the following equations are true and which are false? 6 = 6, 7 = 8 – 1, 5 + 2 = 2 + 5, 4 + 1 = 5 + 2.
Missing Numbers (A) WORKSHEET DESCRIPTION
students will solve 14 missing number problems when working through this worksheet. In seven questions the number being subtracted is missing and in another seven questions the starting number is missing.
All worksheets are created by the team of experienced teachers at Cazoom Math.
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Frequently Asked Questions
This worksheet is specifically created for 1st grade students who are developing their understanding of subtraction relationships. At this level, students are building foundational skills in recognizing how numbers work together in subtraction equations and learning to identify missing components.