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Cogito

Grade 3 Math · Chapter 2 · Lesson 8

Practice Worksheet

Grams and Kilograms

Reading a scale to find a mass.

10 problems · about 12 minutes · 3.MD.A.2

NameDate

Figure — use these to answer the problems

The marks are every 100 grams. Read where the needle points.
0100200300400500

250 g

Mass in grams250
Figure 1

Warm-Up Review

From earlier lessons. Loosen up before the new work.

3 problems

  1. From “Time Intervals”

    From 7:45 to 8:10. How many minutes?

    Answer

  2. From “Telling Time to the Minute”

    One mark past the 9. How many minutes past the hour?

    Answer

  3. From “Subtracting Within 1,000 Fluently”

    905 − 348 = ?

    Answer

Warm Up

Straightforward practice. Get the method working first.

3 problems

  1. How many grams are in one kilogram?

    Answer

  2. The needle sits halfway between 400 and 500 grams. What is the mass?

    Answer

  3. How many grams in 2 kilograms?

    Answer

Build It Up

The same ideas with more to keep track of.

1 problem

  1. Which unit fits an apple?

    • Grams.
    • Kilograms.

Stretch Yourself

Mixed problems. Work out what kind of question it is before you start.

3 problems

  1. A parcel of 300 g and one of 250 g. What is the total mass?

    Answer

  2. Choosing a Unit

    Which unit would you use to weigh a person?

    • Kilograms.
    • Grams.

  3. How Many Grams

    How many grams are in one kilogram?

    Answergrams