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Measuring Mass with Scales

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Measuring Mass with Scales

Help plan a low-waste bake sale by weighing ingredients accurately. Use 1 kg = 1,000 g. Show your working and include units in your answers.

Scale check

Read the scale displays, then decide what to do before weighing.

A. 0.375 kg

B. 1.06 kg

1.The scale shows 0.375 kg. What is this mass in grams?
2.A bowl is on the scale and the display reads 240 g. You need the mass of the flour only. What should you do before adding the flour, and why?

Weighing the ingredients

At the bake sale, Maia weighs ingredients for a batch of muffins. Use the recorded masses below.

Flour: 0.75 kg

Sugar: 325 g

Oats: 0.18 kg

Butter: 200 g

3.Convert the flour mass, 0.75 kg, to grams.
4.Convert the sugar mass, 325 g, to kilograms.
5.What is the total mass of the flour and oats in grams?
6.What is the total mass of all four ingredients in kilograms?

Solve the bake-sale challenge

A recipe needs 2 kg of dry ingredients altogether. Maia has already weighed out 1,255 g of dry ingredients. Butter is not included in this dry-ingredient total.

7.How many more grams of dry ingredients does Maia need to reach 2 kg?
8.Maia adds a container to the scale, then adds 545 g of oats. The display shows 710 g. What is the mass of the empty container?
9.A second batch needs 1.25 kg of flour. The scale reads 1,180 g. How many more grams of flour are needed? Give your answer in grams and kilograms.
10.The scale measures to the nearest 5 g. Which reading is consistent with a scale that measures to the nearest 5 g: 238 g or 240 g? Explain what the scale’s 5 g increments mean.

2 printable pages

  • Measuring Mass with Scales, page 1 of 2: Scale check, Weighing the ingredients

    Page 1

  • Measuring Mass with Scales, page 2 of 2: Solve the bake-sale challenge

    Page 2

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