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Cogito

Grade 6 Math · Chapter 2 · Lesson 3

Practice Worksheet

Finding a Percent of a Number

Ten percent first, then build.

10 problems · about 18 minutes · 6.RP.A.3

NameDate

Figure — use these to answer the problems

Shade the percent you want and read it against the whole.

30/100 = 0.30 = 0.3

0.00.10.20.30.40.50.60.70.80.91.0
Percent30
Figure 1

Warm-Up Review

From earlier lessons. Loosen up before the new work.

1 problem

  1. From “Percent as a Rate per Hundred”

    17 out of 20 as a percent?

    Answer

Warm Up

Straightforward practice. Get the method working first.

4 problems

  1. What is 30% of 90?

    Answer

  2. What is 10% of a number?

    • The number divided by 10.
    • The number multiplied by 10.

  3. What is 10% of 70?

    Answer

  4. What is 40% of 50?

    Answer

Build It Up

The same ideas with more to keep track of.

2 problems

  1. What is 25% of 64?

    Answer

  2. What is 5% of 200?

    Answer

Stretch Yourself

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

3 problems

  1. The Sale

    What is 20% of 45?

    Answer

  2. The Tip

    What is 15% of 80?

    Answer

  3. The Class

    60% of 25 students walk to school. How many walk?

    Answerstudents