Three-Digit Addition Subtraction
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Three-Digit Addition and Subtraction
📊 Part 1: Estimation and Mental Maths
456 + 378
456 rounds to _______ and 378 rounds to _______
Estimated answer: _______
642 - 289
642 rounds to _______ and 289 rounds to _______
Estimated answer: _______
✏️ Part 2: Vertical Column Method
347 + 285 = _______
523 - 167 = _______
468 + 394 = _______
468 + 394 ≈ _______ + _______ = _______
Is your exact answer reasonable? _______
🧠 Part 3: Problem Solving
Calculation:
Answer: $__________
Calculation:
Answer: __________ students
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