Fluently Adding and Subtracting Double Digit Numbers
Aligned To Common Core Standard:
Grade 2 Base Ten - 2.NBT.5
Tips For Adding and Subtracting Double-Digit Numbers After learning simple single-digit addition and subtractions, kids need to proceed to double-digit addition and subtraction. A child with a perfect understanding of single-digit addition and subtraction can easily understand the double-digit addition and subtraction. Here are some effective tips that will help kids develop strong concepts of double-digit addition and subtraction. Using Number Lines- Kids can efficiently add and subtract double-digit numbers using a number line. If they are aware of concepts of skip counting, using a number line can significantly help them. Using Base 10 Blocks- Another tips that can help children quickly learn double-digit addition and subtraction is to use the base 10 blocks. It helps kids add numbers beyond 100 with ease. Ungrouping- Place value can ease the addition and subtraction for the kids. Breaking a number in tens or ones can help kids efficiently subtracting complicated double-digit numbers. Count Down, Count Up- When the concept of counting up and counting down is clear, a student can easily solve double-digit addition and subtraction problems. The goal of these worksheets is achieve mastery of adding and subtracting double digit integers.
Printable Worksheets And Lessons
- Step-by-step Lesson- We run you
through everything in this lesson. Single and double digit sums,
double digit differences and sums.
- Guided Lesson - Horizontal
and vertical double digit differences and sums. We follow that with
a simple image based problem.
- Guided Lesson Explanation
- You could also just have the students rewrite the numbers in a
horizontal format, if that helps.
- Practice Worksheet - More
double digit basic operations. They are all aligned vertically.
- Matching Worksheet - Match the horizontal sum of difference with its equation.
This skill, by most past state standard fell into grade 3, but now it is a grade 2 skill.
I threw in a matching format to make it a little bit more fun for the kids.