Subtraction Using Number Lines (Subtracting Single Digits from Numbers up to 20) WORKSHEET
Suitable for Grades: 1st Grade
CCSS: 1.OA.C.5, 1.OA.C.6
CCSS Description: Relate counting to addition and subtraction (e.g., by counting on 2 to add 2).
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).
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).
Subtraction Using Number Lines (Subtracting Single Digits from Numbers up to 20) WORKSHEET DESCRIPTION
Students can use the method of counting back from a given number to aid them in subtracting numbers within 20 with this worksheet.
Starting with an example the worksheet then presents a series of subtraction problems, each accompanied by a number line that ranges from 0 to 20.
Questions and answers use the numbers from 0 to 20.
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This subtraction using number lines (subtracting single digits from numbers up to 20) worksheet is designed for students in 1st Grade and aligns with Common Core State Standards.