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Addition•
Number Bonds Up to 20•
Properties of Operations

Making 20 (C) 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.

Making 20 (C) WORKSHEET DESCRIPTION

students will complete number bonds to 20 throughout this worksheet. We have provided one number from each pair, children must find the missing number in order to make a total of 20. Given numbers are a mixture of single and double digits.
All our primary resources include space for students' nnames and the date.

All worksheets are created by the team of experienced teachers at Cazoom Math.

Making 20 pdf printable worksheet perfect for students 1st Grade

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Frequently Asked Questions

This worksheet is designed for 1st Grade students who are building their addition skills. The focus on number bonds to 20 aligns perfectly with first-grade math standards where students develop fluency with basic addition facts. Working with both single and double digit numbers helps students progress from simpler to more challenging combinations within 20.