Efficient Subtraction Year 4 Addition and Subtraction Resource Pack

Step 8: Efficient Subtraction Year 4 Resources

Efficient Subtraction Year 4 Resource Pack includes a teaching PowerPoint and differentiated varied fluency and reasoning and problem solving resources for Autumn Block 2.

What's included in the pack?

This pack includes:

• Efficient Subtraction Year 4 Teaching PowerPoint.
• Efficient Subtraction Year 4 Varied Fluency with answers.
• Efficient Subtraction Year 4 Reasoning and Problem Solving with answers.

National Curriculum Objectives

Mathematics Year 4: (4C2) Add and subtract numbers with up to 4 digits using the formal written methods of columnar addition and subtraction where appropriate
Mathematics Year 4: (4C3) Estimate and use inverse operations to check answers to a calculation
Mathematics Year 4: (4C4) Solve addition and subtraction two-step problems in contexts, deciding which operations and methods to use and why

Differentiation for Year 4 Efficient Subtraction:

Varied Fluency
Developing Questions to support comparing two methods of subtraction. Two 3-digit numbers with no exchanging.
Expected Questions to support comparing methods of subtraction. Includes two 4-digit numbers, with exchanges.
Greater Depth Questions to support comparing methods of subtraction. Includes 3-digit numbers from a 4-digit number or two 4-digit numbers, with exchanges. Includes some multi-step subtractions.

Reasoning and Problem Solving
Questions 1, 4 and 7 (Problem Solving)
Developing Check a method of subtraction and create a further calculation for the method. Involves subtracting two 3-digit numbers (no exchanges).
Expected Check a method of subtraction and identify how it could be done more efficiently. Involves subtracting two 4-digit numbers (with exchanges).
Greater Depth Check a method of subtraction and identify how it could be done more efficiently. Involves subtracting 3-digit numbers from a 4-digit number (with exchanges).

Questions 2, 5 and 8 (Reasoning)
Developing Explain whether a suggested method is efficient. Includes subtracting two 3-digit numbers, with no exchanging.
Expected Explain why a statement regarding subtracting two 4-digit numbers (with exchanges) is always, sometimes or never true.
Greater Depth Explain why a statement regarding subtracting 3-digit numbers from a 4-digit number or a 4-digit numbers from a 5-digit number (with exchanges) is always, sometimes or never true.

Questions 3, 6 and 9 (Reasoning)
Developing Use and compare two methods of subtracting two 3-digit numbers (no exchanges).
Expected Use and compare two methods of subtracting two 4-digit numbers (with exchanges).
Greater Depth Compare two methods of subtracting a 3-digit number from a 4-digit number (with exchanges).

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