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Cogito

Grade 4 Math · Chapter 4 · Lesson 4

Practice Worksheet

Number Patterns

Follow the rule, then notice what it did not say.

10 problems · about 15 minutes · 4.OA.C.5

NameDate

Figure — use these to answer the problems

Set the step and look at where the marked squares land.
Numbers 1 to 100, ten in each row. 4 is chosen.
Start at4
Add each time4
Figure 1

Warm-Up Review

From earlier lessons. Loosen up before the new work.

2 problems

  1. From “Multiples”

    Smallest common multiple of 4 and 10?

    Answer

  2. From “Prime and Composite”

    Is 29 prime?

    • Yes.
    • No.

Warm Up

Straightforward practice. Get the method working first.

4 problems

  1. Start at 7, add 4. What is the 5th term?

    Answer

  2. Why does "start at 3, add 4" keep every term odd?

    • Adding an even number keeps it odd.
    • It just happens that way.

  3. Start at 3, add 5. What is the 4th term?

    Answer

  4. Start at 100, subtract 7. What is the 3rd term?

    Answer

Build It Up

The same ideas with more to keep track of.

2 problems

  1. Start at 1, double each time. What is the 5th term?

    Answer

  2. Start at 4 and add 10. Are the terms all even?

    • Yes. Even plus even stays even.
    • No.

Stretch Yourself

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

2 problems

  1. The Chairs

    Each table seats 4, plus 2 at the ends. With 5 tables, how many seats?

    Answerseats

  2. The Savings

    Ana starts with 5 pounds and adds 3 each week. How much after 6 weeks?

    Answerpounds