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SubjectNest · Year 3 maths · Make it fit, then check

Estimate and check · e-reserveYear 3 Maths · T1 W5–6 · Readers / Assessment / E reserve

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MODEL collection: 3 complete groups of 30 pieces and 12 loose pieces. Two fictional material batches are 238 and 346 pieces. Stock is 600 pieces. A ticket reports the combined batches as 58 pieces. No real class count, purchase or event is asserted.

Usual communication, exact scribing, private/untimed response, rest or pause are welcome. An adult may read/describe all source facts neutrally, without choosing your maths or giving answers. These supplied models do not establish real measuring.

1. Estimate the collection using a known group. Explain your clue; keep an estimate different from an exact count.

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2. Before exact addition, give a useful estimate of the two batches and explain a benchmark.

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3. Calculate the exact combined batches. Is stock enough, and what is left?

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4. Explain why 58 needs checking. Use a connected inverse check for your own exact total.

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