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Cogito

Grade 5 Math · Chapter 4 · Lesson 4

Practice Worksheet

Dividing Decimals

How many of these fit into that?

10 problems · about 16 minutes · 5.NBT.B.7

NameDate

Figure — use these to answer the problems

Set an amount and imagine sharing it into equal parts.

80/100 = 0.80 = 0.8

0.00.10.20.30.40.50.60.70.80.91.0
Hundredths80
Figure 1

Warm-Up Review

From earlier lessons. Loosen up before the new work.

2 problems

  1. From “When Multiplying Makes Things Smaller”

    What is 0.25 × 40?

    Answer

  2. From “Multiplying a Decimal by a Whole Number”

    9 × 0.3, in tenths?

    Answer

Warm Up

Straightforward practice. Get the method working first.

4 problems

  1. How many halves fit into 9?

    Answer

  2. Why does dividing by less than 1 make the answer bigger?

    • Small pieces fit in many times.
    • Because that is the rule.

  3. 0.6 ÷ 2, in tenths?

    Answer

  4. 0.75 ÷ 5, in hundredths?

    Answer

Build It Up

The same ideas with more to keep track of.

2 problems

  1. How many quarters fit into 5?

    Answer

  2. Dividing by 0.5. Does the answer grow or shrink?

    • It grows.
    • It shrinks.

Stretch Yourself

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

2 problems

  1. The Share

    0.9 shared among 3. How many tenths each?

    Answertenths

  2. The Halves

    How many halves fit into 6?

    Answerhalves