Finding the Difference (B) WORKSHEET
Suitable for Grades: 1st Grade, 2nd Grade
CCSS: 1.OA.C.6, 2.OA.B.2
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).
Fluently add and subtract within 20 using mental strategies.2 By end of Grade 2, know from memory all sums of two one-digit numbers.
Fluently add and subtract within 20 using mental strategies.2 By end of Grade 2, know from memory all sums of two one-digit numbers.
Finding the Difference (B) WORKSHEET DESCRIPTION
students have to calculate the difference between eight number pairs here. All numbers are multiples of 10 and there is a number line provided for support.
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This finding the difference (b) worksheet is designed for students in 1st Grade and 2nd Grade and aligns with Common Core State Standards.