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Cogito

Grade 5 Math · Chapter 8 · Lesson 6

Practice Worksheet

Converting Units in Problems

Get everything into one unit first.

10 problems · about 15 minutes · 5.MD.A.1

NameDate

Figure — use these to answer the problems

The whole beaker is 1 litre, which is 1,000 millilitres.

250 ml

Millilitres250
Figure 1

Warm-Up Review

From earlier lessons. Loosen up before the new work.

2 problems

  1. From “The Shape Hierarchy”

    Is every rectangle a parallelogram?

    • Yes.
    • No.

  2. From “Patterns as Pairs”

    A adds 3, B adds 12, from 0. What is B when A is 9?

    Answer

Warm Up

Straightforward practice. Get the method working first.

4 problems

  1. 1.25 litres in millilitres?

    Answer

  2. What must you do before adding amounts in different units?

    • Convert them to one unit.
    • Just add the numbers.

  3. 3.5 metres in centimetres?

    Answer

  4. 2,500 grams in kilograms?

    Answer

Build It Up

The same ideas with more to keep track of.

2 problems

  1. 0.75 litres in millilitres?

    Answer

  2. Going to a bigger unit, does the number get smaller?

    • Yes. Fewer of them are needed.
    • No.

Stretch Yourself

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

2 problems

  1. The Two Jugs

    1.5 litres plus 750 ml. How many millilitres in all?

    Answerml

  2. The Rope

    2.4 metres plus 60 cm. How many centimetres in all?

    Answercm