4.4.A
The Standard
add and subtract whole numbers and decimals to the hundredths place using the standard algorithm
Texas Essential Knowledge and Skills for Mathematics
Teacher's field guide
What This Standard Means
What Students Need to Do
- Students align digits by place value and use the standard written steps to add or subtract. They regroup across ones, tenths, and hundredths when needed.
What Mastery Looks Like
- Students correctly solve addition and subtraction problems with whole numbers and decimals through hundredths. Their digits stay aligned, regrouping is recorded, and decimal points remain in the correct place.
Common Misconceptions
- Students may line up numbers by their right edges instead of matching place values. They may omit placeholder zeros or regroup without recording the changed digit.
How to Assess It
- Give an exit ticket with 347.68 + 59.7 and 500.00 - 286.45. Ask students to show each step and circle where they regrouped.
Lesson moves
Ways to Teach It
Build 3.47 + 1.85 with base-ten blocks on a place-value mat, then connect each trade to the written algorithm.
Have students explain why 8.4 and 8.40 have the same value and how the zero helps when calculating.
Play Regrouping Race with task cards, where pairs solve one problem, compare steps, and earn a point only when both algorithms match.
Give students a store receipt and a $20 budget, then have them find the total cost and calculate the change.
Keep exploring
Related Standards
- 5.3.G
solve for quotients of decimals to the hundredths, up to four-digit dividends and two-digit whole number divisors, using strategies and algorithms, including th...
- 3.4.B
round to the nearest 10 or 100 or use compatible numbers to estimate solutions to addition and subtraction problems
- 4.2.F
compare and order decimals using concrete and visual models to the hundredths
- 5.3.E
solve for products of decimals to the hundredths, including situations involving money, using strategies based on place-value understandings, properties of oper...
Turn this exact standard into a lesson
Grade, subject, topic, and the complete standard are prefilled. Create one free, no account needed.