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3rd Grade Math
8. 3.OA.D.8
8.4 Subtraction Word Problems Up to 1000
Subtraction Word Problems Up to 1000
Turn real-life subtraction stories into number sentences, then subtract three-digit numbers confidently using place value and regrouping.
What You'll Learn
Identify key words like left, fewer, difference, and how many more that signal a subtraction problem
Translate a word problem into a number sentence such as \( 542 - 187 = ? \)
Draw a bar model to see the whole amount and the missing part before subtracting
Apply regrouping across the ones, tens, and hundreds columns when a top digit is too small
Check the answer by adding back up, since \( 355 + 187 = 542 \) confirms the subtraction is correct
Estimate the difference first to judge whether the exact answer makes sense
What You'll Practice
1
Finding how many items remain after some are taken away
2
Solving comparison problems to find how many more or fewer
3
Word problems involving real-life contexts like animals and school
Why This Matters
Subtraction word problems help you apply math to everyday situations like shopping, sharing, and comparing groups. Mastering these skills builds your problem-solving ability and prepares you for more complex multi-step word problems in higher grades.
This Unit Includes
1 Video lesson
Practice exercises
Learning resources
Skills
Subtraction
Word Problems
Problem Solving
Place Value
Number Sense
OH Curriculum Aligned