Add Two 3-Digit Numbers 1 Year 3 Addition and Subtraction Learning Video Clip

Add Two 3-Digit Numbers 1 Year 3 Addition and Subtraction Learning Video Clip

Step 13: Add Two 3-Digit Numbers 1 Year 3 Addition and Subtraction Learning Video Clip

Ali the Animal Keeper is excited about some children arriving at the Conservation Park today for their school trips! She needs to use her knowledge of adding two 3-digit numbers to solve different problems.

More resources for Autumn Block 2 Step 13.

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Discussion points for teachers

1. Is she correct?
Discuss the total amount of children in attendance and the capacity of the arcade. Consider whether the children on a school trip would be accompanied by adults as there is only one more space left.
Yes; 464 + 232 = 696

2. How many toys are in the claw machines in total? Are there enough prizes for all the children visiting today?
Discuss how to complete the calculation. Discuss the answer to the previous question compared with this question.
356 + 579 = 935

3. How many arcade tickets does she need to spend?
Discuss method of finding the answer. Discuss whether all given information is relevant for finding the answer.
234 + 342 = 576

4. Ali thinks he may have muddled the orders. Who is correct?
Discuss parameters given and how the affects the answers. Discuss methods of finding a calculation that could fit the parameters. This question is open-ended for the children to explore.
Ali is correct because Billy must have #4571, Bobby or Bella could have #4568, #4569 or #4570 and Bonnie could have #4568 or #4569. 

5. How much could each toy have cost?
Discuss ways of finding the answer and which is most suitable. Would a systematic approach be the best way? This question is open-ended for the children to explore.
Various answers, for example: 534 + 345

Optional discussion points:

Discuss possible reasons that Ali might have decided to have the different schools use the arcade at separate times.

National Curriculum Objectives

Mathematics Year 3: (3C2) Add and subtract numbers with up to three digits, using formal written methods of columnar addition and subtraction

Mathematics Year 3: (3C4) Solve problems, including missing number problems, using number facts, place value, and more complex addition and subtraction

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