4.MATH.4.A

Add and subtract whole numbers and decimals to the hundredths place using the standard algorithm.

Grade 4 · Texas Essential Knowledge and Skills (TEKS) · TEKS 2012

Standard Unwrapping

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Vocabulary
whole numbersdecimalshundredths placestandard algorithmadditionsubtraction
Skills
  • add (whole numbers using the standard algorithm) #dok1
  • subtract (whole numbers using the standard algorithm) #dok1
  • add (decimals to the hundredths place using the standard algorithm) #dok1
  • subtract (decimals to the hundredths place using the standard algorithm) #dok1
  • solve (problems involving addition and subtraction of whole numbers and decimals to the hundredths) #dok2
Learning Targets
  • I can add whole numbers using the standard algorithm. #dok1
  • I can subtract whole numbers using the standard algorithm. #dok1
  • I can add decimals to the hundredths place using the standard algorithm. #dok1
  • I can subtract decimals to the hundredths place using the standard algorithm. #dok1
  • I can solve problems involving addition and subtraction of whole numbers and decimals to the hundredths place. #dok2
  • I can check my answers when adding or subtracting whole numbers and decimals. #dok2
  • I can explain how and why I use the standard algorithm for addition and subtraction. #dok3
Big Ideas
  • Addition and subtraction can be performed accurately and efficiently using the standard algorithm for both whole numbers and decimals.
  • Knowing how to add and subtract using the standard algorithm is necessary for solving real-world problems involving whole numbers and decimals.
Essential Questions
  • How does the standard algorithm help ensure accuracy when adding or subtracting whole numbers and decimals?
  • When might it be important to use decimals to the hundredths place in everyday life?
  • What are the steps involved in the standard algorithm for addition and subtraction?
  • How can you check if your answer to an addition or subtraction problem is reasonable?
  • Why is it important to line up place values when adding or subtracting decimals?