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# Year 2 and 3 Addition and Subtraction Step 15 Resource Pack

## Step 15: Year 2 and 3 Addition and Subtraction Step 15

Year 2 and 3 Addition and Subtraction Step 15 Resource Pack includes a teaching PowerPoint and differentiated varied fluency and reasoning and problem solving resources for this step which covers Year 3 Check Answers - to prepare for Autumn Block 2.

### What's included in the Pack?

This Mixed Age Year 2 and 3 Addition and Subtraction Step 15 pack includes:

• Mixed Age Year 2 and 3 Addition and Subtraction Step 15 Teaching PowerPoint with examples.
• Year 3 Check Answers - to prepare Varied Fluency with answers.
• Year 3 Check Answers - to prepare Reasoning and Problem Solving with answers.

#### National Curriculum Objectives

Mathematics Year 3: (3C3) Estimate the answer to a calculation and use inverse operations to check answers

Differentiation for Year 3 Check Answers - to prepare:

Varied Fluency
Developing Questions to support checking answers to addition and subtraction calculations using the inverse operation. Using any 2-digit number with no exchanging.​
Expected Questions to support checking answers to addition and subtraction calculations using the inverse operation. Using either two 2-digit numbers or two 3-digit numbers and including some exchanging.​
Greater Depth Questions to support checking answers to addition and subtraction calculations using the inverse operation. Using 2-digit and 3-digit numbers within the same calculation and with up to two exchanges.

Reasoning and Problem Solving
Questions 1, 4 and 7 (Reasoning)
Developing Identify and explain the odd one out of 4 versions of a calculation. Includes 2-digit numbers with no exchanging.
Expected Identify and explain the odd one out of 4 versions of a calculation. Includes two 2-digit or two 3-digit numbers including some exchanging.
Greater Depth Identify and explain the odd one out of 4 versions of a calculation. Includes 2-digit and 3-digit numbers within the same calculation with up to two exchanges.

Questions 2, 5 and 8 (Reasoning)
Developing Explain and correct the mistake made when checking an answer to a calculation. Includes 2-digit numbers with no exchanging.
Expected Explain and correct the mistake made when checking an answer to a calculation. Includes two 2-digit or two 3-digit numbers including some exchanging.
Greater Depth Explain and correct the mistake made when checking an answer to a calculation. Includes 2-digit and 3-digit numbers within the same calculation with up to two exchanges.

Questions 3, 6 and 9 (Problem Solving)
Developing Use digit cards to complete the calculation. Use the inverse operation to check the calculation is correct. Includes 2-digit numbers with no exchanging.
Expected Use digit cards to complete the calculation. Use the inverse operation to check the calculation is correct. Includes two 2-digit or two 3-digit numbers including some exchanging.
Greater Depth Use digit cards to complete the calculation. Use the inverse operation to check the calculation is correct. Includes 2-digit and 3-digit numbers within the same calculation with up to two exchanges.