# Mass · m-later

**Show one idea at a time.**

MODEL scale labels 0,100,200,300,400,500 g, with a middle mark in each gap. Pointer is at 350 g. Empty pouch is 70 g and pouch plus pieces is 290 g. Another sealed model package is 210 g. No body weighing or actual local product is involved.

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. Choose a unit and tool for the mass of a small safe package. Explain why.

Own response: [empty before your attempt]

## 2. How big is each marked gap, and what is the pointer reading?

Own response: [empty before your attempt]

## 3. Find the mass of the pieces without the pouch. Show a connected check.

Own response: [empty before your attempt]

## 4. Which is heavier: the pointer-reading package or the other package? By how much?

Own response: [empty before your attempt]

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