In this article, we have focused on worksheets for the addition of two double-digit numbers with a single-digit number. The concept of regrouping is also necessary to solve some of the sums. We have used a column method of addition so that it is easy to understand carry-over (regrouping). We have tried to format the worksheet in the form of flashcards, which can be used by teachers.
Double Digit and Single Digit Number Addition Worksheet Flashcards
Below, we have a collection of 10 printable worksheets in JPEG and PDF formats for free download. Please feel free to share this worksheet for non-commercial educational purposes. These worksheets can be cut into flashcards and used for activities. This is compliant with CCSS2.OA.B.2, CCSS1.OA.C.6, CCSS1.NBT.C.4, and CCSS 2.NBT.B.5 standards, which are used in most schools in the USA.
Common Core State Standards
- Standard CCSS2.NBT.B.5: Fluently add and subtract within 100 using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction.
- Standard CCSS1.NBT.C.4: Add within 100, including adding a two-digit number and a one-digit number, and adding a two-digit number and a multiple of 10, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used. Understand that in adding two-digit numbers, one adds tens and tens, ones and ones; and sometimes it is necessary to compose a ten.
- Standard CCSS1.OA.C.6: 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).
- Standard CCSS2.OA.B.2: Fluently add and subtract within 20 using mental strategies. By end of Grade 2, know from memory all sums of two one-digit numbers.
